Digital BW filters

Digital B&W … … with filters?

By Geoff Chaplin

Should I use colour filters when shooting B&W on a digital camera? The resounding answer on the internet is, no, shoot RAW and you have more flexibility in casting to B&W by mixing the colour channels or filter emulation. But is there an argument in favour of using filters?

B&W on film

Shooting B&W on film we have to learn to pre-visualise the effect of colour filters on the rendition of the image. It is often said that when shooting B&W on a digital camera we can set the mode to B&W and immediately see the image in B&W. But this does not tell you how the final image will appear after colour filtering the RAW file. Indeed the camera screen image may be positively misleading and look too bland, putting you off even taking the photograph.

Filter test

I decided to photograph a colour chart using no filter and with an orange filter. Normally I shoot with a deep yellow filter but I thought the orange would make differences in colour rendition clearer – it turned out the deep yellow and orange were virtually identical in the rendition of the blues which is the area that primarily interests me. I had tried photographing outdoors when the light was constantly changing but the results reminded me that the variation in colour temperature and contrast can have as great an effect on the image as a change in the filter – after all, what we are photographing is the light, so this isn’t surprising. So I chose a moment when the light was good (white) and steady. The unfiltered shot was metered and then I used a 1.5 stop longer exposure for the (light) orange filter I was using.

What issues are there using colour filters on B&W?

The camera’s meter is dependent on the spectrum of light in a way I don’t fully understand but the presence of a filter causes the camera to underexpose, dramatically so when using a red filter. I found the most effective method to get the correct exposure with a filter attached was to meter without a filter and then use the filter factor to adjust exposure manually, just as I would when using film.

A second issue is the potential loss of data points if one or more of the three colours is missing. This is possible if using a deep red or a deep blue filter but in practice – and especially true for yellow to orange filters – all colours are transmitted to some extent so loss of image quality is unlikely to be an issue.

Filter effect on a colour chart

Digital BW filters
The original colour test chart (no filter)
Digital BW filters
In-camera B&W image, no filter

Using an orange filter the impact is most marked on the blues, Row1Column3, R2C2, R3C1 and R3C6 (and slightly R2C4)

Digital BW filters
In-camera B&W image, orange filter

Actual image comparison

The images below show a rough comparison between as it appears on the camera monitor without a filter being used and how it appears with an orange filter in place. The filter effect is subtle but but most easily seen in the darkening of the sky and the differentiation of the clouds near the horizon.

Digital BW filtersDigital BW filters

Conclusions

If you find the presence of a filter useful for composition when shooting B&W on digital then go ahead and use it. Remember to take account of the possible misreading by the camera’s meter when the filter is in place (particularly if using auto white balance).

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About The Author

By Geoff Chaplin
Primarily a user of Leica film cameras and 8x10 for the past 30 years, recently a mix of film and digital. Interests are concept and series based art work. Professionally trained in astronomical photography, a scientist and mathematician.
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Comments

Ibraar Hussain on Digital B&W … … with filters?

Comment posted: 11/07/2026

The k you Geoff
This is very interesting and confirms what I thought, that whether film or digital a filter will have an effect
Excellent reference!
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Ibraar Hussain replied:

Comment posted: 11/07/2026

I meant thank you! Doesn’t the TTL meter automatically compensate for the filter?

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Alexandre Kreisman replied:

Comment posted: 11/07/2026

I guess it should, but as light is not linear it might be misleading. Strangely enough I encountered this with an enlarger and it’s timer when comparing exposition with seconds versus F stops. Not sure though, if it is the right answer Very informative and nice article Geoff!

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Geoff Chaplin replied:

Comment posted: 11/07/2026

It gets confused by colour filters, so best to ignore.

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Geoff Chaplin replied:

Comment posted: 11/07/2026

Thanks both. Yes metering is a problem on digital using filters.

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Ed on Digital B&W … … with filters?

Comment posted: 11/07/2026

Hi Geoff - that is an interesting post. I've used filters when making B+W photos in camera digitally and I thought they were helpful. I shied away from it because of the received wisdom, that it is not recommended to do. But I'm going to try again. Many thanks for this helpful piece.
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Geoff Chaplin replied:

Comment posted: 11/07/2026

Thanks Ed. Always best to question received wisdom!

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Reed George on Digital B&W … … with filters?

Comment posted: 11/07/2026

Hi Geoff,

When using a monochrome digital camera, using filters is well accepted and makes total sense.

I have used them when shooting a Bayer filtered (regular color digital) camera, too. My feeling is that while color mixing is typically enough in post without filters, using a filter does alter the mix and amount of light of different wavelengths that reach the sensor and can therefore give you more (or less) of the specific light you’re interested in to work with in post.

It also makes your images dedicated monochrome, as the filter cast on the color version can be strong and distracting.

That’s been my experience. Thanks for sharing yours.
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Geoff Chaplin replied:

Comment posted: 11/07/2026

Thanks for your comment. I agree, if it works for you then do it.

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Khürt Williams on Digital B&W … … with filters?

Comment posted: 11/07/2026

Hi Geoff,

Thanks for sharing your testing on this! As someone who loves shooting black and white, I always enjoy seeing how people bridge the gap between classic film mentalities and digital sensors.
Your point about the TTL meter struggling with physical filters is spot on—it’s a frustrating quirk that definitely catches people off guard if they aren't used to calculating manual filter factors like they would on an old film body.

I actually shoot with modern mirrorless bodies (the Fujifilm X-T3 and X-T5), and reading your post made me appreciate how much the technology has adapted. For my setup, physical contrast filters have mostly been made redundant by the EVF (electronic viewfinder). Because I can load built-in profiles like Acros with digital Yellow, Orange, or Red filter simulations right in the camera, I actually see the high-contrast, filtered result live in my viewfinder before I even click the shutter. It completely removes that "bland screen" pre-visualization hurdle you mentioned!

Plus, keeping the physical glass off the lens means the sensor still captures full data across all the RGB channels, which keeps the exposure metering perfectly accurate.

That said, I totally see your point if you're shooting with a dedicated monochrome sensor (like a Leica Monochrom) where the camera can't separate color channels in-camera. In that world, glass filters are absolutely essential.

It’s great to see that physical filters still have a place for those who prefer that workflow or are using specific gear. Looking forward to seeing more of your work!
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Geoff Chaplin replied:

Comment posted: 11/07/2026

I agree. If you can 'see' in B&W and the software can accurately reproduce the filter effect you want then filters are not necessarily. But the two ifs are not simple steps for everyone.

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Christopher Welch on Digital B&W … … with filters?

Comment posted: 11/07/2026

Hi Geoff- thanks for the article. I use a yellow filter on my Canon DSLR when shooting black and white. I keep a 50mm prime lens on it, and also use my Super Takumar 1:1.4 50mm lens on the Canon with a yellow filter. It adds more contrast with the Canon 50 than the Super Takumar I've noticed but the filter works on the stock black and white profile.
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Geoff Chaplin replied:

Comment posted: 11/07/2026

Thanks Christopher, yellow is a generally safe and useful choice.

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Gary Smith on Digital B&W … … with filters?

Comment posted: 11/07/2026

Nice clouds!

I probably ought to own some filters but with 19 cameras deciding which to filter and which to go au natural becomes more trouble than my tired brain can handle.

Thanks for your investigation!
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Geoff Chaplin replied:

Comment posted: 11/07/2026

!!! You can do it Gary! I find photographing objects filters are often unnecessary and cut out too much light, but general scenery, especially if there is blue and cloud in the sky yellow will add some contrast - a safe choice. Give it a try!

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Gary Smith replied:

Comment posted: 11/07/2026

I have a couple of circular polarizing filters in a drawer someplace. One was sized for the LX100 and the other was sized for a Tamron 200-600 zoom. I ought to check the diameter on the small one.

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Geoff Chaplin replied:

Comment posted: 11/07/2026

Good idea - and show us the results please Gary!

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Jeffery Luhn on Digital B&W … … with filters?

Comment posted: 11/07/2026

Geoff,
Thanks for the article on that subject. Students ask me whether filters work on digital cameras and I give them the canned response, but I've never bothered to test it. Thanks for providing a well done experiment. I suppose my answer should be,"Yes, they work, but it may not be worth the effort. And your camera meter may not be reliable. But....if you're shooting infrared with a camera that has an altered sensor, an IR filter is a must."
Since I shoot mostly film these days, I use the Y/G filter a lot. Lightens foliage and helps give skin tones a creamy midtone.
Cheers!
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Geoff Chaplin replied:

Comment posted: 11/07/2026

Thanks Jeffery. For students I guess that's the place to start, but when you get fussy it's worth a try. But like you I prefer film generally.

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David Hume on Digital B&W … … with filters?

Comment posted: 11/07/2026

Thanks for this piece Geoff… It's something I've thought about but not as carefully as I should have. I too have just done the "shoot raw and worry about it later" - ironically more often if intending to go to black-and-white rather than in colour…
I guess this highlights are certain timidity of approach on my part; if I'm just shooting raw in order not to stuff something up, rather than shooting raw in order to realise a vision. It's highlighted to me that my thoughts and confidence are much better in colour than in black-and-white. Thanks for this, cheers.
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Geoff Chaplin replied:

Comment posted: 11/07/2026

Mine too until I seriously started shooting only B&W, then your mindset and way of working change. Worth the effort I think - but then I find colour boring these days.

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Stephen Barnett on Digital B&W … … with filters?

Comment posted: 12/07/2026

With the tools available nowadays it seems like you're making something simple very complicated. If I want a B&W photograph from a colour digital camera (which is 95% of the time) I alter the colour channels in post processing in a programme like Silver Efex. Using an RGB image it is converted to B&W but because the colour channels are in the background standard filters can be applied (red, orange, yellow, green, blue) and you immediately see how a red darkens the blue sky, and they can all be adjusted + or - for full control. There is no guesswork as to how it comes out when a colour filter is put on the lens, which admittedly can work, but it's not the dawn of the digital age anymore.
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Jeffery Luhn replied:

Comment posted: 12/07/2026

Steve, This comment is an observation, not a defense of using filters on digital cameras: I see some photos where corrections/alterations made on a RAW file go too far and result in Mackie lines around the high contrast areas. It's more pronounced in jpegs, of course. Over sharpening also produces this effect. As in all Photoshop/Lightroom efforts, use restraint. Rodinal can also produce Mackie lines from over agitation. Every step requires moderation!

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Stephen Barnett replied:

Comment posted: 12/07/2026

All those problems are about older digital files, but of course this should be an known problem so highlighting it is a must. But a full fat RAW 24m digital file (or more) converted to B&W from an RGB file shouldn't nowadays show any of those problems unless somebody is stretching the file exponentially to try and recover a poor exposure. For older files that you want to 'stretch' Adobe can do 'super resolution' (etc) from the original file which gives something to work on and removes the original digital noise. This is ideal for anybody who is scanning older film files or using old digital files and wanting them upgraded a more modern value.

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Geoff Chaplin replied:

Comment posted: 12/07/2026

Thanks Jeffrey. Stephen, thanks for the comment. I take the view that "the tools available nowadays" make something simple complicated and are full of traps for the unwary. Too much digital photography screams "digital" and looks unbelievable. In competent hands this may not be the case, and the same can be said for analogue processing - overdone dodging and burning for example looks false. For those of us who prefer film to digital when we use digital we may want to get as close to the digital process as possible.

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Aster on Digital B&W … … with filters?

Comment posted: 12/07/2026

Perfect timing! I was just thinking about this a couple days ago and even almost bought filters. I may just pull the trigger now.
I generally prefer practical effects to editing. I find it keeps photos grounded and plausible. And maybe it’s crazy, but it feels rewarding to take that extra beat to read the scene, decide what the photo needs, and not have the option to take it back later. In a digital world with endless possibilities and infinite undos, I like to hold on to some creative constraints.
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Geoff Chaplin replied:

Comment posted: 12/07/2026

" it keeps photos grounded and plausible" excellent point and well said, as is the rest of your comment, thanks Aster! (But using film is even better ;-).)

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Aster replied:

Comment posted: 12/07/2026

I’ve been mostly digital for the past decade or so and… I agree. I’m a process person and while digital is amazing for ‘getting’ the shot, I struggle to replicate the joy of ‘making’ the shot. I’m still having a lot of fun, but I think I’ll need to squeeze film back into my routine. My current body is falling apart and I’m just debating whether I should get it repaired, replaced, or if I should try something entirely new.

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Geoff Chaplin replied:

Comment posted: 12/07/2026

Totally agree, thanks again. Plenty of choice for inexpensive purely mechanical cameras - see for example Ibraar's recent post or a Pentax MX or ...

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Walter Reumkens on Digital B&W … … with filters?

Comment posted: 13/07/2026

Perhaps my knowledge of photography is too limited, or perhaps I’m simply too old for it now. I just don’t get it. Over time, I’ve developed a feel for which subjects are suitable for black-and-white photography. With a roll of film, I only realise after it’s been developed whether I might have been better off using an orange filter instead of the usual neutral density filter. Why do I have to see it straight away with a digital shot? Especially as all I can see on the screen is a standard JPEG. I always shoot digitally in RAW+JPEG-Fine mode so I can see a higher-quality image on the screen. I sometimes switch to monochrome mode to get a first impression of what the subject would look like in black and white. But filters?
That’s a matter for post-processing – and not just advice for students. That’s how professionals work – professionals who also know exactly how Photoshop and Lightroom work in detail. In other words, people who really know these very powerful tools inside out. Someone who has a darkroom but has done little work in it is still a long way from gaining the experience needed for truly good film results. And who really has a proper grasp of Photoshop and Lightroom? Let alone brilliant tools like SilverEfex or the capabilities of Fujifilm cameras? If you overdo the post-processing – not just with black and white – you’ll end up doing a lot of things wrong and making the results worse. Digitalisation has reinvented photography!
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Geoff Chaplin replied:

Comment posted: 13/07/2026

Thanks Walter. I use digital when it's useful photographically (e.g. lens testing) or for scientific work. I prefer the analogue process for enjoyment and image making. My article basically says use filters for B&W on digital if you find it helpful - it's not a recommendation and points out the main pitfall, and it says don't blindly follow internet mantras.

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Walter Reumkens replied:

Comment posted: 13/07/2026

It is true that one must be cautious about statements made on the internet, even those from the companies that manufacture these filters and are finding fewer and fewer buyers. As I said, digitalisation has reinvented photography. :-)))

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Geoff Chaplin replied:

Comment posted: 13/07/2026

I agree. Digital has transformed photography from and art to a science - but although the latter is extremely useful I prefer the former.

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David Pauley on Digital B&W … … with filters?

Comment posted: 14/07/2026

As a dedicated film shooter, I almost didn't read this piece but am glad I did. I'm ambivalent about filters even on film. I used to use a light yellow filter as a matter of course since I read somewhere that that was the thing to do. Now I mostly abstain except when I want to bring out the clouds in an outdoor shot. Thanks for a piece that shows the merits of such filters whether in analog or digital universes.
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Geoff Chaplin replied:

Comment posted: 14/07/2026

Thanks David. If I'm shooting architecture with no sky or indoor shots I often don't use a coloured filter but often some sky is there so I'll use a yellow to orange filter; in woodland a green/yellow is a filter I should use but often I'm happy or greenery to go black.

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Agata Urbaniak on Digital B&W … … with filters?

Comment posted: 23/07/2026

I use colour filters, especially red, practically all the time when shooting outdoors. But I do it on the Monochrom. As sensor resolutions go up this might be less and less of an issue but because of how Bayer sensors are constructed, if you use a red filter you will effectively only be using 25% of your sensor as the other 75% of pixels/photocells (however you want to call them) won't register any information and the blanks will be filled in by extrapolating the information gathered by the pixels registering the colour red. In a nutshell, you're severely limiting the amount of information registered by the sensor.
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Dann in Indonesia on Digital B&W … … with filters?

Comment posted: 25/07/2026

An excellent article, well-written and informative. Ditto many of the comments from your readers. Many thanks to all.

Walter and I are from a past generation of photographers. In my case, I cut my teeth in it during the early 1960s, iintially with B&W film processed in my own darkroom in my parents' home. In 1970 I went mostly over to color, at first with color negative films until I discovered the beauty of slides from Kodachrome and Ektachrome and somewhat later, slide films from Agfa and Fuji.

We did things far more simply back then. In 1970 I went to Bali for the first time, again in 1972 and 1973 and for a three-months stay (truly, those were the good old days) in 1975. My cameras for these journeys were initially a Yashica D, a Rolleiflex E2, two circa 1950 Kodak Retinas, a Mamiya 500 DTL and a Pentax K1000. All my cameras had UVs, yellow and orange filters, only later did I discover the benefits of a polariser in harsh tropical light.

Leaping on to the digital era, now and then I put a yellow or an orange Nikkor filter on one of my DSLRs (D700 and D800, now moved on to Z6 and Z5 but still using the old Ds as I work best with optical viewfinders). And I use the cameras not with the Monochrome setting. I try to cover all my bases as regards color shifts and exposure variations by setting my Nikons to make two or even three images of important scenes, at -0.3, 0.0 and +0.3. A lot of images to plod through at downloading/post-processing time, but it ensures that now and then I get something close to what I wanted in the final results.

I will admit, however, that the results I am getting from all this effort have so far been mostly - well, disappointing. The images are basically acceptable but not good enough to work with to any great extent. But I persevere.

Best from DANN in Indonesia.
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Dann in Indonesia on Digital B&W … … with filters?

Comment posted: 25/07/2026

A small add to my 4th paragraph.

My exposure variations by setting my Nikons to make two or even three images of important scenes, at -0.3, 0.0 and +0.3., are mostly for images I make in tropical lighting (Indonesia).

Anyone planning to use this method in northern hemisphere light may do better with -0.5, 0.0 and +0.5. English daylight even in summer is really nothing at all like noon in Surabaya...

Best from DANN in Indonesia
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Geoff Chaplin replied:

Comment posted: 25/07/2026

Dann thanks for the messages and background. Take a look at my "Heavens Above" series (https://www.35mmc.com/18/04/2023/heavens-above-by-geoff-chaplin/) I think I bracketed between +/- 5 stops (5.0 not 0.5!) to handle the contrast range. If you're not happy with the results - have you identified why? - why not try film again? Like me you grew up having to understand the photography process and use your brain to get the image you want on film and then process it to a print in a darkroom - so why hand over to some electronic chip?

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