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Pentax is a Japanese camera company which produces compact digital cameras, and APS-C and medium-format digital SLRs.

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5
votes
2answers
1k views

Can I use aperture ring of Pentax FA lens in aperture priority mode?

I'm considering getting an FA Limited lens for my Pentax DSLR. The FA series has an aperture ring with an "A" setting for control by camera bodies that support it. Can I instead use the aperture ring ...
1
vote
1answer
284 views

Does autofocus work with the Pentax K10D and Tamron 18-250mm?

Hallo; does autofocus actually work with the Pentax K10D and Tamron 18-250mm? If so,how good/fast is it?
4
votes
3answers
653 views

Why is dark-frame subtraction on my Pentax camera shorter than the exposure time?

When my Pentax K-r applies long exposure noise reduction (dark-frame subtraction), the processing time required for this operation is less than the exposure time. For example, my camera may perform ...
4
votes
3answers
9k views

What's the difference between PEF and DNG RAW formats?

I just recently purchased a Pentax K-r. It has two formats to shoot raw with, PEF and DNG. Are there advantages or disadvantages with using one over the other?
7
votes
3answers
2k views

How should I chose a manual focusing screen for my Pentax K10D?

I am considering buying a split focusing screen, replacing the original one. I would like to use some split/microprism screen to ease the focusing of the manual lenses. I own both kit lenses (18-55, ...
11
votes
3answers
2k views

What Pentax macro lens do you recommend for outdoor activities?

I am a Pentax K20D owner, and now I'd like to buy my first macro lens. Candidates I consider are: Pentax-D FA 100 mm F2.8 Macro 365 g, 560 €. Pentax-D FA 100 mm F2.8 Macro WR weather-resistant, 340 ...
3
votes
1answer
3k views

How do the Pentax 18-55mm and 18-135mm compare in image quality?

I've been reading a lot about the Pentax DA 18-135mm lens and its performance compared to other lenses. I've heard that this lens is very soft at 135mm regardless of aperture. However, I've also ...
2
votes
3answers
429 views

What is the difference between the two Pentax 50-200mm DA lenses?

Pentax offers two DA zoom lenses with a 50-200mm range: smc PENTAX DA 50-200mm F4-5.6 ED WR smc PENTAX DA 50-200mm F4-5.6 ED The only obvious difference I see between them is that one is weather ...
3
votes
2answers
732 views

Why is my Pentax K-x producing artifacts and color banding?

my Pentax K-x is acting up :( In low light scenarios I got heavy color banding and 'strange' image artifacts. You can find an example here: http://imgur.com/v0lzP I took it at ISO 400 and the color ...
8
votes
2answers
730 views

Extension tube set elements

My extension tube set (Soligor for Pentax AF + P/KA) was not working correctly on my DSLR, so I checked the tubes, and found an interesting difference. It has three tubes (12mm, 20mm, 36mm). This is ...
3
votes
1answer
863 views

Creating Proper Exposure with a Pentax PZ10

Not long ago, my Pentax K1000 was damaged and I upgraded to the Pentax PZ10 (both film cameras). I feel lost with trying to get the right exposure on the PZ10; with the K1000 I used a third-party ...
13
votes
7answers
901 views

Should I invest in a high-end body or better lenses?

I've got a good-old Pentax K100D body with a kit 18-55 and a couple of 50mm manual focus primes. I'm trying to get back into photography, but slow (and some times lack of) focusing does not give me ...
7
votes
2answers
921 views

Pentax to Canon Adapter

My dad has an old Sears KS-2 + 50mm f/1.7, which from a bit of research seems to use a Pentax K-mount. I've looked around a bit and found a Pentax to Canon adapter, which says it supports ...
7
votes
3answers
645 views

Upgrade advice pentax to canon + which canon 50D/60D or 7D

So I have a Pentax K20D/18 - 250 tamron which was the unexpected result of a court case with a shop over broken K100 Super 2 years back. While I love the camera itself I've become frustrated with it's ...
4
votes
3answers
393 views

Can you achieve the Depth of Field effect with the Pentax X90?

I was flicking through some photos on flickr and started thinking that I wanted to achieve a particular effect - after a bit research I found that what I was appreciating was Depth of Field. Subject ...