Pentax K100D – The only digital camera that I have any affection for

By Phil Harrison

I’ve never really been enthusiastic about digital cameras, seeing them as an necessary inconvenience, I just use them when I need colour photos these days. I do get restless with cameras, needing a regular change, so nothing seems to stay for very long. I’ve owed a lot of film and digital cameras over the years! After using digital cameras by makers such as Sony, Canon, Lumix, Kodak, Fuji and Leica the only digital camera that I have any affection for is the Pentax K100D.

Sensor development in the early 2000’s was moving apace with more pixels and larger sensors become available every 6 months or so, the pixel race was on. I had quite a few of the compact digital cameras since they became widely available around 2003, changing them as the quality and pixel count increased.

The Pentax K100D was my first digital SLR bought in 2007, when I thought 6 megapixel APC size sensors had come of age, with offerings from Pentax, Nikon and Canon vying for customers with similar specs and image quality. Unusually the camera was powered by four AA batteries, NiMh rechargeable batteries are recommended by Pentax but not supplied. Back in 2007 I had two sets of NiMh batteries, Nikon and Canon were using rechargeable lithium batteries which would have been better. I bought the K100D simply because I had the Pentax Spotmatic as my film camera and a low price offer also helped the purchase.

Some photos taken in 2007.

My partner asked me what I would like for a birthday present this year. I had difficulty in thinking of anything until it occurred to me to have a look on an auction site for K100Ds. The usual selection from rubbish to overpriced was on offer, however a boxed nearly complete example for just £60 seemed to fit the bill. Really not a lot of money.

Pentax K100D

This Pentax K100D does not seem to have been used very much and is in very nice condition. A wipe over of the body, dusting the mirror and focusing screen, cleaning the front and back lens elements was all that was needed. The non slip rubber backing on the neck strap was rubbing off and was easy to remove. I mounted a 1gb SD card, enough for 345 images in jpeg! Image size is just 3008 x 2000 pixels, this gives a maximum size of A4 when printing at 300ppi, which back in 2007 was all I wanted. I popped in the AA batteries and took some photos in the garden, the processing is quite slow around 4 seconds before you can chimp. Straight out of the camera the photos were in focus and well exposed.

So what’s the Pentax K100D like to shoot these days? It’s quite a big chunk but fits in the hand well. The shutter gives a good loud clonk when it fires. The viewfinder is fine even when wearing glasses although the shooting information at the bottom of the viewfinder is hard to see but you do have a clear lcd top screen near the shutter button with all the info you need. The adjustment controls are easy to use, allowing you to adjust aperture, shutter and ISO quickly. Back in 2007 Pentax suggested that if you use alkaline batteries you could only expect 80 shots out of the batteries. This time I loaded Energiser Max Plus alkaline and after 200 or so shots they are still showing full. The colour of the images always impressed me, very life like. Rich deep red however can present a problem to the CCD sensor with high saturation and loss of detail. The detail can quite easily be recovered by reducing red saturation.

ISO noise, 200 & 400 are clear of noise, 800 it’s just noticeable, 1600 more obvious, 3200iso very obvious but still useable if you don’t crop and your struggling for light. You could use ISO 200 to 800 without any worries. RAW and JPEG are offered but the results are very similar so I stuck to JPEG to make life easy.

400ISO
800ISO
1600ISO
3200ISO

The kit lens is a PENTAX-DA L 18-55mm F3.5-5.6AL. This can produce excellent photos if the extreme wide of the zoom is avoided and you keep to between f8 to f16. Focusing is quick. Camera shake can be reduced with the built in shake reduction system which uses a moving sensor rather than a lens element. This is useful as a lot of the older Pentax-F lenses can all benefit. Back in 2007 I also had a used Pentax-F 80-200mm f4.7-5.6 lens, these F lenses were cheap to buy and still are, my bandstand sunset photo was taken with this lens.

One unadvertised feature of the K100D is the ability to shoot Infra Red images with the appropriate IR filter. It’s CCD sensor is very sensitive to IR. This image was shot in colour then converted to B/W.

Pentax K100D IR

Some photos taken recently at our local steam railway, the East Lancashire Railway.
ISO is 400 and 800.

The Pentax K100D is as much fun to shoot now as I remember it was in 2007. Pentax brought out a slightly updated K100D called the K100D Super, the only difference I can find is the ability to use SDHC memory cards and you can set the sensor to shake itself every time you turn on the camera to help with dust removal off the sensor. The K100D does the job with ease and in it’s day it was well up to the quality of the Canon and Nikon offerings.

Thanks for reading and perhaps these photos will generate your interest in trying out ‘vintage’ digital cameras.

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About The Author

By Phil Harrison
Phil spent 25 years as a professional photographer after leaving Photographic College in the mid 1970’s. In his early years, he worked as a medical photographer, based in a hospital in the north of the UK and later came upon a change of direction to industrial photography and film/TV production. In the late 90’s Phil gave up professional photography after taking redundancy then found work as a Train Guard, now retired. He doesn't specialise with his photography, enjoying photographing anything that appeals.
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Comments

John Bennett on Pentax K100D – The only digital camera that I have any affection for

Comment posted: 09/09/2024

Nice photogrpahs & good story, Phil!
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Phil Harrison replied:

Comment posted: 09/09/2024

Thank you John, much appreciated.

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Jeff T. on Pentax K100D – The only digital camera that I have any affection for

Comment posted: 09/09/2024

Back in the day I had one of these, which I replaced a few years later with a K10D. Your photos demonstrate the excellent rendition of the 100D with Pentax lenses, which to my mind have always been the equal in quality to Nikon and Canon, ever since the 1960s. Although I preferred the newer K10D's viewfinder and higher resolution, I found both cameras to be very user-friendly, and I especially liked that I could use my Pentax mount pre-digital autofocus and many manual focus lenses with these cameras. They are very inexpensive on the used market today, so anyone on a budget and with a love for Pentax (and a few Pentax pre-digital lenses) could find them very appealing. Of course, they don't have the advanced capabilities of the contemporary digital cameras, but for amateurs who don't really need those capabilities, these older Pentaxes are quite a bargain. Thanks for the post and the pics.
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Phil Harrison replied:

Comment posted: 09/09/2024

Thank you Jeff.

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Jeffery Luhn on Pentax K100D – The only digital camera that I have any affection for

Comment posted: 09/09/2024

Nicely written piece with good photos! I'm especially interested in the exact IR filter you used to get the nice landscape shot. Is there a setting on the camera for IR, or did you simply put the filter on? Were you able to see what you were shooting with the filter on? How is the sharpness?

My reason for these specifics: I teach photography at the college level and this reasonably priced Pentax could be a good way to introduce students to IR. At $120, it's much cheaper than IR converted Nikons or Canons.
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Phil Harrison replied:

Comment posted: 09/09/2024

Thank you Jeffrey. I used a Hoya R72 infrared filter. There is no IR setting on the camera, I just put the filter on after focusing manually. The camera was on a tripod, the exposure 0.4 sec at f18, ISO 200. The images are false colour which can be converted to B/W in your photo processing software. I tested the camera for IR sensitivity by pointing a tv remote control, whilst pressing a button on the remote, at the camera and taking a photo. There is no live view on the camera. I agree this camera would be ideal for teaching.

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Gary Smith on Pentax K100D – The only digital camera that I have any affection for

Comment posted: 09/09/2024

And, as an added bonus: it can take black and white exposures as well!
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Phil Harrison replied:

Comment posted: 09/09/2024

This is true, personally I prefer converting to B/W from my colour image in post processing. Thanks Gary

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Tony Warren on Pentax K100D – The only digital camera that I have any affection for

Comment posted: 11/09/2024

Thanks for this Phil. As an ex-pat living in the antipodes your photos of many things I miss are very nostalgic. The CCD sensors did allow IR to be taken very effectively with minimum fuss. And the detailed, clean imaging of the bandstand epitomises everything that makes digital the success it rapidly became. That sort of image quality is there whatever the genre of choice, really beautiful in its colour and detail. Also something the CCD sensor helped with.
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Phil Harrison replied:

Comment posted: 11/09/2024

Many thanks for your comments Tony.

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