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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
1answer
115 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 ...
4
votes
2answers
791 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
4answers
418 views

Does being a Macro lens but on a shorter focal length affect taking a tight portrait photo?

I want to do some beauty portraits. Some of my shots will be from waist up, some of them will be tighter. For example just the face and nothing else in the frame OR a little going back to get the ...
0
votes
1answer
38 views

Why does my Pentax Optio E30 create a new folder and reset numbering each time I turn it on?

I have Pentax Optio E30 for 8 years. After counting to 9999 it started to act weird. While before it saved images in numeric order into one "100pentx" folder, now it creates a new folder every time I ...
3
votes
4answers
552 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?
16
votes
10answers
36k 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 ...
2
votes
5answers
231 views

What are the options for an ultra-wide angle rectilinear lens adapted for Sony Full Frame?

I shoot with the Sony Alpha line predominately and currently have a 24mm Quantary Aspherical that I use on it but want to get something wider, ultra-wide. I'm not sure what to get though. I have ...
2
votes
4answers
852 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 ...
12
votes
5answers
3k 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 ...
1
vote
2answers
89 views

Does Pentax make a lens adapter to fit Olympus lenses?

I have some Olympus lenses I found at an estate sale, does Pentax make an adaptor to fit these?
3
votes
6answers
720 views

Is high Chromatic Abberation typical with the Pentax f/1.8 50mm lens?

I recently bought a Pentax K-50 in a set with two lenses (18-55 & 50-200) as well as a 50mm fixed focal length lens. The camera is great but I am extremly disappointed in the lenses. Two out of ...
7
votes
1answer
129 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 ...
3
votes
1answer
93 views

Metz 48 AF1 incorrect exposure on Pentax K3ii

My Dad recently upgraded his Pentax K5 to a K3ii. He has a Metz 48 AF1 flash which worked perfectly on the K5, and also on my sister's Kx. On the K3ii it wasn't exposing properly at all. It seemed ...
1
vote
1answer
59 views

Silence my Pentax k1000 [duplicate]

I just bought my first camera. A Pentax k1000. I really want to eliminate my shutter sound or just the sound of the mirror slapping. What do you suggest
1
vote
1answer
103 views

Is the Pentax SMC DFA 100mm f/2.8 WR Macro compatibile with the Pentax K-r?

Is the Pentax smc D FA Macro 100mm f/2.8 Weather-Resistant Macro lens compatible with the K-r body, and is this going to be a good buy for sharp close up insect/nature shots etc?
1
vote
1answer
237 views

How does the sharpness of the Pentax 645Z compare to Canon 5DS R with high-end lens?

If you pair a 5DS R with a Zeiss Otus... and you pair a 645Z with any of its typical, similar lenses... Larger sensor and much more expensive body (Pentax set), vs more expensive lens. (Canon set). ...
14
votes
4answers
10k 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 ...
1
vote
2answers
162 views

How to Mount Pentax K-Mount on Canon?

I have an old Pentax 50mm 1:2 lens (from a Pentax Asahi K-1000) and a Vivitar 28mm f2.8 that I am trying to adapt to fit on my Canon Rebel t2i. I purchased two of these adapters but I cannot figure ...
32
votes
8answers
5k 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 ...
5
votes
2answers
4k 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-...
1
vote
2answers
226 views

How to fire a Pentax AF 360 FGZ flash with a canon 7D camera

I have a Pentax AF 360 FGZ flash and a Canon 7D camera. Different hardware I know. But I want to be able to fire the flash, possibly using a remote trigger that would allow me to remotely take the ...
1
vote
2answers
110 views

Will a SMC Pentax-A lens work with my Pentax K → Micro Four Thirds adapter?

I am using a MFT camera and have a lens coming in soon. I have a PK -> MFT adapter. The lens is supposed to be Aperture-automatic, SMC Pentax-A 35-105mm F3.5. Now, will it work with the adapter? I don'...
0
votes
0answers
63 views

Can I use a Samyang 75-300mm or a Soligor 90 - 230mm lens on a Pentax Film Camera?

I have two Pentax cameras (ME Super and a K1000). Which of these lenses will work with either or both of the cameras? Soligor 90-230mm Phoenix/Samyang 75-300mm They both fit on each of the ...
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?
0
votes
1answer
266 views

What are the possible reasons my Pentax K-r malfunctions when using flash?

I have a Pentax K-r. It works fine in general. But, when I try to use flash, it doesn't take pictures anymore. The shutter will not fire. What can be the possible causes? Is there a hope to repair it?...
0
votes
0answers
99 views

Pentax K-r: how do I turn off multiple exposure?

Multiple exposure: I know how to turn it on but how do I turn this function off? I can't seem to get lower than 2.
1
vote
1answer
166 views

Is the Pentax FluCard noticably slower than a typical class-10 SDHC card?

I'm interested in Pentax's wifi-capable SD card, and specifically in the Pentax-specific model, as it also allows some rudimentary camera control from a smartphone app. However, I'm concerned by this ...
7
votes
4answers
1k 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 ...
19
votes
4answers
3k 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?
7
votes
1answer
813 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
3answers
4k 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 ...
9
votes
2answers
4k 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 ...
1
vote
2answers
1k views

Does the Pentax K1000 have a sensor for a remote shutter release?

I have a self-portrait assignment for photography class, but the Pentax k1000 that I'm shooting with doesn't have a self timer. I have a shutter release remote that I use for my other film cameras, ...
5
votes
1answer
692 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?
0
votes
1answer
1k views

Does the K1000 need a battery to trigger the flash?

The Pentax K1000 is a classic, all-manual film camera, and just about the only annoying flaw is that the meter doesn't turn off, depleting the battery over time. Even if you put the lens cap on, it's ...
2
votes
3answers
8k views

Can I use a Pentax lens on a Canon body?

I have a SMC Pentax-M 50mm 1:2 prime lens and a Pentax MC auto 28mm 1:2.8 from my dad. I have been looking at two film cameras lately, the Pentax MG and the Canon AE-1. If I buy the Pentax MG I know I ...
2
votes
2answers
742 views

Why is AF performance different in automatic and selective mode?

How often do you use AF in selective (SEL) mode? The reason why I'm asking is that I've noticed that on a Pentax body (K10D and K-5) the AF is a lot more accurate when in AUTO mode than in SEL mode. ...
4
votes
4answers
1k views

Pentax-K 50mm lens, thread of 49mm or 50mm?

I really want to do some monkey macro photography. I am a student with almost no time and money, and want to take some hobby pictures in my spare time. I have the Canon EOS 450D (Rebel XSi/Kiss X2). ...
1
vote
1answer
402 views

Can I trick the Pentax K1000's meter to “turn off”?

The Pentax K1000 has a meter that is always on. The manual says the only way to keep the meter from draining the battery when not in use is to put a lens cap on it. However, the needle does not move ...
0
votes
1answer
111 views

Pentax k-30: can i buy all lens not stabilized?

I'm interested to buy a Pentax K-30. I'm wondering : can I buy not stabilized optics because of body' stabilized sensor ? Is the overall image quality comparable to an optic with stabilizer (like ...
1
vote
5answers
2k views

Can I use Olympus OM lenses on a Pentax DSLR?

I have some Olypus lenses that were used with my OM20 camera that I would like to use on my Pentax K-r camera. Is this possible, and what would I need to do it?
1
vote
3answers
140 views

Blurry Pictures. Lighting fine.

I recently shot some family pictures for a friend's family event (thank god I didn't get paid for this job). The location was problematic with the light - very strong late afternoon light and I don't ...
0
votes
2answers
141 views

Sigma lens mount change

I have the Sigma f2.8 focal length 24mm Super Wide 11 lens which I used on my Canon FD cameras and found to be very good. Question: Can I change the breech lock mount for a Pentax 42mm screw in ...
1
vote
1answer
150 views

Is there a budget fish-eye for Pentax Q system?

I currently use a Pentax Q camera with the standard lens and I was wondering if anyone knows of a budget fish-eye lens that will fit the Q. I know Pentax does an official fish-eye lens but it's around ...
28
votes
5answers
5k views

What do Pentax, Sony, and Olympus 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 ...
2
votes
1answer
483 views

What does fast/normal/slow mean for Pentax auto-iso?

I'm very confused about the Pentax auto-iso implementation. What does "fast/normal/slow" mean for the Auto-iso in the menu settings? The camera in question is a K-3, but I think it applies pretty ...
5
votes
7answers
3k 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 ...
17
votes
2answers
8k 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 ...
1
vote
1answer
554 views

What can I do about Pentax superzoom 18-270 autofocus problems?

I use a Pentax K200 and have been satisfied with the original Pentax 18-250 superzoom, for travelling, outdoors, family types of use. However the autofocus gradually failed, the motor going to and fro ...
1
vote
4answers
852 views

How do I decide what lenses I will need for a trip to New Zealand? [closed]

I am going to visit New Zealand (both islands) and just trying to select lenses to take with me. I have Pentax K-x DSLR and following lenses: Sigma 17-70mm f/2.8-4 DC Macro HSM Pentax-DA L 18-55mm ...