Questions tagged [pentax]

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

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33
votes
11answers
7k views

Do I really need a fast 50mm lens?

Everyone I speak to says that a 50mm lens is the best and beats them all as an all-rounder. I was wondering whether to get myself a decent, fast 50mm as well. However I'm still not 100% sure whether I ...
33
votes
5answers
6k views

What do Pentax and Sigma DSLRs offer that differs from Canon and Nikon?

We have a question and answers outlining the significant differences between the "big two" DSLR brands. I'm interested in the other DSLR makers, and how the cameras they make compare in terms of ...
30
votes
1answer
35k 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 ...
20
votes
4answers
17k views

Why do some professional cameras have dual memory card slots?

I have noticed that some cameras such as the Nikon D300s, Canon EOS 1D Mark IV, or Pentax 645D have dual memory card slots. What is the purpose of having multiple memory card slots and why would you ...
19
votes
4answers
14k views

Can I use old Pentax lenses on newer Pentax DSLRs?

Can I use old Pentax lenses from the film days on the newer Pentax DSLRs? Are there any caveats or exceptions? Are adapters or modifications needed?
18
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4answers
21k views

What flash options are there for the Pentax system?

I am a relative newcomer to the photography world and am slowly building up a set of gear based around my Pentax K-x. Next on my list of priorities is a flash. As I have virtually no experience in ...
17
votes
11answers
40k views

Which prime lens for Pentax APS-C?

My girlfriend is buying a Pentax K-5 (I already have a Pentax DSLR so we thought it made sense for us to be able to share lenses), and she's not sure about which lens to get with it, so I've been ...
16
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5answers
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 ...
15
votes
4answers
4k views

Why have all negatives been exposed to one frame?

I recently shot a roll of kodak 200 (36 exposures) and got them developed on the high street and all 36 shots have been exposed onto one frame, shown on the attached image; all other 35 frames are ...
15
votes
3answers
21k views

Is a Pentax K1000 relevant today, and how can I get the best use of it?

I wanted to know what is the relevance of a pentax K 1000, a 35mm SLR in the present date. The one I have is almost 20 years old and I want to how can I make the most of it with respect to the film ...
13
votes
7answers
1k 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 ...
13
votes
5answers
5k views

How do I ensure good color reproduction when photographing paintings with a mid-level DSLR?

I'm a casual photographer with an APS-C camera (Pentax K-5) and a set of proper lenses. Someone asked me if I could photograph his oil paintings for a catalog. It's a low priority job to him, he just ...
11
votes
2answers
6k views

Is it worth using Pentax's Premium JPEG quality setting?

Similar: How do I choose which resolution (megapixel) and compression (normal, fine, superfine) to shoot in? The Pentax K-5 has a JPEG quality setting called "Premium", denoted by four stars, which ...
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 ...
10
votes
1answer
282 views

Why is my Pentax LX engraved with the name of famous Japanese photographer Masaaki Nakagawa?

Any idea why my Pentax LX has a name of the famous deceased Japanese photographer Masaaki Nakagawa engraved on it? Is it some kind of limited edition?
9
votes
3answers
1k views

Why is f-stop number 8 in orange on my lens?

I have an old Takumar SMC 28mm lens. On the aperture ring, the marker for f/8 is in orange. Is there any special reason for this? Is it just to mark the middle? Or is it just for style? https://www....
9
votes
5answers
10k views

Is there a Canon equivalent of the Nikon D3100? If so, what is it?

I am looking to buy an Entry level DSLR, and had decided on Canon system due to lens availability with friends, and general popularity amongst my peer group here. I am planning on general photography,...
9
votes
2answers
1k views

Why must my Pentax ME Super be set to 125x when changing film?

In the instruction manual for the Pentax ME Super it says to set the shutter speed to 125x before unloading film and while reloading film. Is there a reason for this? I accidentally loaded film ...
9
votes
1answer
3k 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 meters, ...
9
votes
2answers
3k 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?
9
votes
1answer
344 views

Where can I find information on the Pentax Q lenses serial protocol?

I'm searching for detailed information on the Pentax Q lenses (any, but I'm especially interested in the 5-15mm-lens) serial protocol, which controls focus/zoom/aperture. So far I have found nothing ...
8
votes
5answers
2k views

Should my collection of older Pentax lenses be a deciding factor in my first DSLR purchase?

First post on here so I'll try and put a bit of background. I'm brand new to taking "proper" photographs and want to get started in landscape photography as a hobby after seeing some great pictures ...
8
votes
3answers
5k 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 ...
8
votes
2answers
902 views

Are the contacts on different extension tubes in Soligor Pentax AF set supposed to be different?

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 ...
7
votes
7answers
8k views

What's the difference between P mode vs. Av or Tv?

According to the Pentax K50 and K10D manuals, in P mode, if I select aperture, then program will choose a corresponding shutter speed, and if I specify shutter speed, then camera will select a ...
7
votes
3answers
703 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 ...
7
votes
2answers
14k views

What happens if I press the film rewind button early?

I have to press the film rewind button on the bottom of my Pentax ME Super in order to be able to rewind the film back into the canister when I'm done shooting a roll. If I accidentally press it ...
7
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2answers
1k 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 af-...
7
votes
2answers
2k 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 ...
7
votes
2answers
927 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 K-...
7
votes
1answer
1k views

How *Auto* Are Pentax Auto Extension Tubes?

While asking for extension tubes for a Pentax DSLR, Pentax replied: As requested, please find the following extension tubes available. Product 30535, auto extension tube set B Product 30551, life-...
7
votes
3answers
3k 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, ...
7
votes
1answer
207 views

Is a fixed length macro lens better at some tasks than a non-macro lens of the same focal length?

I'm considering getting a 35mm prime lens to augment my current lenses. I'm not looking for a zoom. I can get an f2.8 macro, now, or special order an f2 non-macro lens. Both are roughly the same ...
7
votes
1answer
1k 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 ...
6
votes
2answers
1k views

What exactly are highlight and shadow correction on Pentax DSLRs?

My Pentax K-50 has features called "highlight correction" and "shadow correction". The manual makes the following claims about these features (on page 150): Expands the dynamic range and enables a ...
6
votes
1answer
1k views

How to avoid switching "modes" of 4-way controller on Pentax K-5?

I quite enjoy ergonomics and user interface of Pentax K-5, except this one thing that drives me nuts. I shoot almost exclusively using a selected focus point, and the arrow buttons have two "modes" -...
6
votes
2answers
5k 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 point-and-...
6
votes
1answer
1k 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 ...
5
votes
5answers
7k views

Why am I getting poor AF results with my Pentax K10D?

I've been using Pentax K10D for a while and I'm a bit frustrated with performance of auto focus on that camera. Very often the images are not sharp enough despite taken in with decent lens (e.g. ...
5
votes
3answers
489 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 ...
5
votes
1answer
991 views

Why can't I set my Pentax K-5 IIs to ISO 100?

I recently got a K-5 IIs, and found that it can't be adjusted to under ISO 200. Even with expanded ISO mode, 160 is the lowest possible value. Can anyone help me out?
5
votes
3answers
2k 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
3answers
6k views

How to manually rewind film?

I am pretty new to the film camera game and have a Pentax Espio 115. I’m not used to all the terminology yet, so what I say may not be correct term. On my most recent film, my camera has stopped on ...
5
votes
2answers
2k 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 ...
5
votes
2answers
834 views

Why is it difficult to find camera color profiles?

I'm trying to understand color profiles by reading this answer, and it seems to me that it's very useful to have a color profile for all my devices (camera, computer screen, printer). Most raw ...
5
votes
1answer
1k views

Pentax K-30 + Metz 52 AF 1 as off-camera slave

I recently bought external flash Metz 52 AF 1 and I have Pentax K-30 camera. Wireless mode works fine, however i expected it will be possible to use ONLY Metz flash without built-in pentax flash - ...
5
votes
3answers
16k 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?
4
votes
5answers
753 views

Small haul of Pentax gear, what have I got here?

Following up on my previous post, I have inherited a collection of Pentax gear from my dad but am not really sure exactly what I've got - I doubt any of it is very exciting but is it worth following ...
4
votes
2answers
463 views

Why does the Pentax K-01 have less DR than the Pentax K-5?

I thought that the K-01 and the K-5 both sported the same sensor, but checking their specifications in Snapsort I found that their Dynamic Range is different by a little bit more than 1 EV (12.9 EV vs ...
4
votes
3answers
809 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 ...