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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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6
votes
2answers
1k views

Pentax P-TTL: Why and when does underexposure occur and what can I do?

Pentax's P-TTL flash metering system tends to be unreliable and may underexpose at times. When and why does the system underexpose and what can I do? I want to know the situations that cause flash ...
5
votes
1answer
389 views

How can I use Pentax lenses on a Lumix FZ18?

I have 3 very nice old Telephoto lenses for an old Pentax K1000 that doesn't work good anymore, color is shot. So my wife has a new Panasonic Lumix FZ18 camera and we thought we would try to get the ...
6
votes
1answer
565 views

What are the differences between Pentax weather sealings - DA★, WR, AW?

Pentax has in current product line weather-sealed lenses with three different markings - DA★ on primes and fast zooms; WR on consumer zooms and 100mm macro; AW on some newer primes. What are the ...
4
votes
3answers
377 views

Will an external flash for Pentax K-7 work for Pentax K-5?

I'm looking for a cheap flash, and found this one. It states that it works for Pentax K-7; will it work for my Pentax K-5 as well? I don't know what to look for in the specifications.
3
votes
1answer
671 views

Are there any pro wildlife photographers using the Pentax DA* 300mm?

Are there any pro wildlife photographers using the Pentax DA★ 300mm? I have spent a week searching for anyone who is using Pentax kit in wildlife photography and who is getting paid for their work.
1
vote
2answers
611 views

Pentax DA L 55-300mm lens very soft--is it broken?

There seems to be a problem with my DA L 55-300mm lens, with very soft output at or near the telephoto end: Wide-open test shot Pentax K-5 with Pentax DA L 55-300mm @ 300mm. Av, 1/320s f/5.8 ISO ...
6
votes
2answers
2k views

Are there any radio flash triggers capable of P-TTL?

All the popular radio TTL flash triggers, like PocketWizard or RadioPopper, seem to be only available in Nikon and Canon flavors. Are there any models capable of transmitting Pentax P-TTL data?
1
vote
1answer
133 views

Pentax DA L lens focusing scale? [duplicate]

Possible Duplicate: How does one focus for landscape photos in very dark conditions? I have a Pentax K-r with the kit DA L 18-55 and a prime DA 35. As far as I'm concerned, they are good ...
3
votes
2answers
468 views

How To Fix Badly Functioning Shutter Release-Button?

I have a compact Pentax OptionM10 which I bought in 2006 and sometimes shutter-release button works only when pressing it on edge and under specific angle, but mostly as I apply little pressure which ...
0
votes
1answer
1k views

Import PEF raw file from Pentax K-R into ps cs5 extended - not supported?

Im trying to import PEF raw files from a Pentax Kr, into photoshop cs5 extended (osx lion) but i keep getting an error message, is their a work arround or plugin i can use to over come this ?
1
vote
1answer
408 views

Do non-distorted wide angle lenses exist for the Pentax KR?

I do a lot of shots for work (interior design). We use a Pentax KR, which we like, but because of the size limitations of some rooms, it's hard to get a decent photo of them displaying how the room ...
3
votes
5answers
2k views

Nikon D7000 vs Pentax K-5 vs some other camera - which do you recommend?

I have used my first camera (Sony A-300) for 2 years already. It is okay but I want something new and better, and have a budget of between 1200 and 1300 euros. A couple months ago I talked to a local ...
1
vote
1answer
427 views

What's the recommended off camera flash setup for Canon and Sunpak flash combination?

I'm new to off-camera flash photography, and this question confirmed my guess that you don't have to have off-camera flashes of the same brand; but I need a bit more info. I've got a Canon 40D, ...
6
votes
1answer
702 views

Does the older but still more expensive Pentax K-5 offer any advantages over the new K-30?

I was looking to buy a Pentax K-5 in the next couple of months. But with the announcement of the new K-30 im now currently questioning that decision. Is there any reason to go for the more expensive ...
3
votes
2answers
400 views

How to set exact time on a Pentax K-5?

I need my photos taken with a Pentax K-5 to have an exact timestamp. When setting the time in menu, I can't see the seconds part; is there any way to reset them to zero?
4
votes
2answers
443 views

What would cause a Pentax SDM lens to stop autofocusing, and what can I do?

I've read many reports that the SDM autofocus motor in some Pentax lenses may stop working after several months or years of use. Why does this happen, and is there anything I can do to prevent ...
2
votes
1answer
362 views

Is trailing curtain sync with manual power settings possible with Metz flashes on Pentax?

I want to use manual flash power settings in combination with trailing sync with older manual non-smc (m42) lenses on a Pentax K-7. This is for extreme macro and focus stacking. I'm using microscope ...
4
votes
1answer
438 views

How should I set up a flash bracket for Pentax?

I have a Pentax K-r and a Metz mecablitz 50 AF-1 digital flash unit, and I've been having problems with red-eye. As a result, I'm considering getting a flash bracket. I am aware that I can simply ...
0
votes
1answer
655 views

Is there a firmware hack which enables AVCHD recording in video mode on Pentax K-5?

The Pentax K-5 supports only recording video in the MPEG format. Does a firmware update or hack exist that would allow recording in AVCHD? Are there software hacks for the Pentax DSLRs at all? ...
5
votes
3answers
635 views

What's the difference between vertical and horizontal shutters?

I've always thought that shutters were composed of two vertical curtains that moved along the sensor in order to expose it (at least for most DSLRs). Recently I've bought a Pentax K1000 that ...
5
votes
2answers
293 views

What type of filters should I get for high sunny conditions?

I'm planning a trip in Sri Lanka and Maldives Islands next month. In such sunny conditions, I would like to buy filters for a Pentax K20-D, to be able to take pictures of the sea, the beach, etc. (but ...
1
vote
1answer
982 views

Can a Pentax K-5 record more than 4 GB of video with an SDXC card?

When using an SDHC card, the Pentax K-5 can only record up to 4 GB of video in a single clip. This is said to be because SDHC cards use the FAT32 file system, which has a 4 GB maximum file size. At ...
4
votes
1answer
729 views

What might cause stuck focus on a manual lens?

So, today I dropped my ME Super. When I picked it up I realized that the focus ring of the 50mm f2 lens attached didnt turn. My question is, what could cause this? Could it be that the threads inside ...
2
votes
3answers
600 views

How can I compare the MTF results on Photozone from the Pentax SMC DA* 300mm with similar lenses from Canon and Nikon?

I have been researching the Pentax SMC DA* 300mm f/4 ED [IF] SDM as a possible wildlife lens to use with my K-5. There are only a limited number of reviews of the lens from reputable sources and even ...
13
votes
3answers
2k views

Do you have advice for buying my first lens after kit 18-55mm (sub-$300)?

I’m looking to buy my first lens beyond the kit 18-55mm for my Pentax K-x. As a student my budget limits me to around a sub $300 offering. I am new to photography, and so I have a hard time answering ...
2
votes
1answer
509 views

How much difference is there between the Pentax DA 55-300 and FA 80-320?

I currently have a Pentax FA 80-320, and it's very nice to have a long zoom available. Lately, I've been considering "updating" to the DA 55-300. I also have the DA 50-200, so the lower end of the ...
3
votes
2answers
455 views

Is Pentax AF360 same as Jessops 360AFD?

I've got a Jessops 360AFD flash and I'm looking for a diffuser for it (the original one is broken). I have been led to believe it is the same as a Pentax AF360. Is this the case? Or have I had ...
8
votes
1answer
854 views

What's the small white plastic dome on old Pentax lenses?

My old Pentax lenses have a small white dome between the aperture ring and the focus ring. See the photo below: The clear white dome calls to mind the larger white plastic domes used in light ...
24
votes
1answer
10k views

What are the differences between E-TTL, i-TTL, and P-TTL?

Canon, Nikon and Pentax each have their own TTL flash metering systems, respectively E-TTL, i-TTL, and P-TTL. They all use a weak preflash that is metered and used to calculate flash power level ...
1
vote
2answers
353 views

Cons of using a manual flash on-camera as well?

Can we use a manual mode flash (specifically the Lumopro LP 160) On-Camera as well ? What are the cons of this ? The only one I can think of is no TTL support. Note : I will be using this with a ...
5
votes
2answers
715 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 ...
3
votes
2answers
449 views

Is it possible to mount Pentax lenses on Sony NEX with an adapter?

I wonder whether it would be possible to mount Pentax lenses on a Sony NEX, using an adapter. Are such adapters already available? Would it be possible to have automatic focus?
1
vote
1answer
249 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?
3
votes
3answers
535 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
6k 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, ...
10
votes
3answers
1k 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
2k 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 ...
7
votes
2answers
2k views

What extension tube options are there for the Pentax system?

From the reading I have done on extension tubes, I understand that some are just 'dumb' tubes while others have electronics that may allow for metering and autofocus to still work. Further, from this ...
5
votes
1answer
3k views

Is there an enhanced third-party firmware for Pentax SLR cameras?

I am wondering whether there is a kit for making software improvements to the Pentax K-x camera. What I'm after is something akin to the CHDK, which is a firmware enhancement for many Canon ...
2
votes
3answers
386 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
636 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
667 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
780 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
850 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
779 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
583 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
367 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 ...