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Forum: Pentax K-1 5 Days Ago  
My K1 camera's no more reliable then my Nikon/Canon/Fuji cameras were...
Posted By jatrax
Replies: 20
Views: 1,325
So far no issues on mine. I hope it stays that way.
Forum: Pentax SLR Lens Discussion 5 Days Ago  
Someone here who's still using the oldest sigma 70-200 (APO EX (1999)) ?
Posted By jatrax
Replies: 10
Views: 487
I've no experience with that lens however if it is K-mount there is no reason it would not work. One of the hallmarks of the Pentax line is backwards compatibility. It is extremely rare for an older lens to not work on a newer camera. One notable exception was some Sigma lenses were a bit large for the K-1 and caused a slight scratch on the camera. Sigma fixed those lenses I believe. Anyway, that is not the case here and that lens (if K-mount) should work fine.

What the image quality will be is a completely different story.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
Pentax 300 lens choice
Posted By jatrax
Replies: 50
Views: 1,563
What is your budget? PM me if you do not want to post it.
Forum: Welcomes and Introductions 6 Days Ago  
New member - K3 bound and needing advice!
Posted By jatrax
Replies: 52
Views: 949
Yes it can. There has traditionally been a bias toward 'prime' or single focal length lenses, particularly on this forum. The belief being that they are 'better' than a zoom, which IMHO is just a carryover from film days. The reality today is that it still might be true for the tiny percentage of photographers who can discern the difference but for the other 99% of us modern zooms like the 16-85 are just as good. And likely better than film era vintage primes which is mostly what you are going to see in Pentax land at affordable pricing.
I feel you are best to invest in good quality modern zooms like the 16-85 or the 60-250 and then if you really see the need for something special buy the prime that fits that. But only buy a prime after you know WHY you are buying that prime lens. A 100mm macro is a good example, it can do things the zoom can't but it is a special purpose lens.

---------- Post added 10-13-17 at 03:53 PM ----------

Oh and this is what happens if you start buying lenses without stopping to think if you really need them:

Forum: Welcomes and Introductions 6 Days Ago  
New member - K3 bound and needing advice!
Posted By jatrax
Replies: 52
Views: 949
Get the 16-85 first and play around with that for a while until you learn the camera. Getting a bunch (even 2 or 3) lens all at once means you split your time between them and do not learn them thoroughly. And you end up with things in your bag that you rarely use.

Once you have a feel for the camera then look into a longer zoom which might be the 55-300 PLM or even the DA*60-250 if you can find a good used one.
Forum: Welcomes and Introductions 10-11-2017, 07:51 AM  
Largest exhibition-quality prints from a K10D
Posted By jatrax
Replies: 12
Views: 436
I agree with Norm, do some test prints and see what they look like. And get other opinions from people who can be objective, (not friends and relatives). There is a big difference between what is acceptable for personal display of an image that has meaning to you versus a professional exhibition. I have an image taken with an old Coolpix P&S years ago that I have printed successfully up to 11x14 and it continues to hang in my house because it has meaning for me. But if I compare that print with something from the K-3 or K-1 it is obvious the quality is not the same. For my personal use it is great, but it is not something I want hanging in a gallery or would show at an art show.

Your original question was: "Largest Exhibition-Quality Prints". In my humble opinion that is going to be 11 x 14 for the K10D. If you want to print 20 x 30 on a regular basis you need more pixels. I'm glad your decision is made but I do not understand it. Do some test prints before you make that decision and I think it will be different.
Forum: Welcomes and Introductions 10-10-2017, 07:57 AM  
Largest exhibition-quality prints from a K10D
Posted By jatrax
Replies: 12
Views: 436
Answer is: it depends.
Are you printing on paper, canvas or metal? Viewing distance that you want the work to look good at? The further away the less resolution is required to let the image still look acceptable.

K10D is 2590 x 3870 so at 100dpi you can print on canvas with good results up to 26 x 38" At 200dpi that drops to 13 x 19. At 300dpi you drop to 8 x 12ish. You will get many other opinions but for my work I want to see 300 dpi on metal, at least 200 dpi for paper and can get away with 100 dpi for canvas. But those are just rules of thumb and include good sharpening and other work on the image. And it depends on the image itself some will print just fine at a lower resolution others show flaws very quickly.

If I was printing on a regular basis @ 20 x 30 I would want at least a K-3 but that's just my opinion.
Forum: Pentax News and Rumors 10-09-2017, 02:47 PM  
Ricoh GRZ coming soon?
Posted By jatrax
Replies: 83
Views: 5,185
Should not take too long. Pentax Rumors should have it by tomorrow.:)
Forum: Pentax SLR Lens Discussion 10-09-2017, 07:53 AM  
Paper Archives what lens should I take
Posted By jatrax
Replies: 20
Views: 530
This is the classic copipod from Pentax: PENTAX Copipod reviews - Pentax Camera Accessory Review Database I have used it a bit and it certainly does the job and is very portable. Of course it was designed for FF 35mm film.

I found that I could just use my regular tripod and a 50mm lens with the documents on the floor or on a small wooden platform.
Forum: Pentax News and Rumors 10-09-2017, 07:46 AM  
Ricoh GRZ coming soon?
Posted By jatrax
Replies: 83
Views: 5,185
A unknown friend of an unknown poster on another forum supplied (recycled) a rumor from 2016 that is now at least one and possibly almost two years old? And that is exciting news?
The Pentax (Ricoh) world is indeed desperate for anything to talk about..............................
Forum: Pentax SLR Lens Discussion 10-08-2017, 03:53 PM  
SMC Pentax A* 300 2.8 for 950$ worth it?
Posted By jatrax
Replies: 6
Views: 657
$1450 is an excellent price for that lens. Somebody got a good deal IMHO.
Forum: Pentax News and Rumors 10-08-2017, 03:48 PM  
DFA*50 1.4 coming
Posted By jatrax
Replies: 1,770
Views: 129,151
Sorry, no. I am not in market for a lens that does 'ok' or is otherwise crippled. The DFA 24-70 is just fine at 24mm so I have no need for another lens that goes to 24mm sort of. And the DFA 28-105 is also very, very good within its range. The DA 20-40 is a nice lens by all reports but it is NOT a FF lens.
Not by me but I expect you might be correct in general. However, I think I paid $1,150 or so for the DA*60-250 and would expect to pay at least that or perhaps closer to $1,500 for a FF version with a modern motor and the other goodies on the DFA 70-200. The current price is I think still around $1,200. So the market is there for a * class lens in that range and aperture.
Forum: Pentax SLR Lens Discussion 10-08-2017, 11:09 AM  
SMC Pentax A* 300 2.8 for 950$ worth it?
Posted By jatrax
Replies: 6
Views: 657
If you don't want it let me know. Assuming the condition is good (and it is the f/2.8 not the f/4 version) then that is a suspiciously low price.
Forum: Pentax News and Rumors 10-08-2017, 08:49 AM  
DFA*50 1.4 coming
Posted By jatrax
Replies: 1,770
Views: 129,151
Not sure I agree with that entirely. Slower does not necessarily equal cheaper. As a landscape shooter f/2.8 is not something I need very often but an excellent light weight f/4 zoom of the same quality as DFA 70-200 would be in my shopping basket. I will never be a customer for the 70-200 f/2.8 as I do not need the wide aperture and cannot afford the weight when hiking. But I would be happy to buy something similar to the DA*60-250 that is updated to modern standards and lens motor.

Same with the DFA 15-30, it is too heavy, does not easily use filters and has a wide aperture I do not need. For those that need the f/2.8 I am sure it is great and I am glad Pentax has it in the catalog for them. But for a hiking landscape shooter I would much rather have the modern equivalent of the FA 20-35 f/4.

Pentax needed the standard trio of f/2.8 lenses to establish themselves and that is fine. But they bill the K-1 as a 'field camera' so how about some 'field' lenses? Small, light weight, slower aperture, with reasonable filter rings and superb sharpness across the field. 18-35 f/4? 24-90 f/4? 60-250 f/4?
Forum: Pentax SLR Lens Discussion 10-08-2017, 08:30 AM  
Paper Archives what lens should I take
Posted By jatrax
Replies: 20
Views: 530
^^^^^This^^^^^
You do not say what the size of the paper is or what distance you can achieve so the 35mm might be the best focal length or it might be the 50mm. I have done document duplication with the A 50mm f/1.7 and found the results quite acceptable. I have not used the DA 35mm Limited for that but it should also work very well assuming you can make the focal length work.
If you know the dimensions of the paper, mock up some at home and test out your process. You will then know which lens is better and you will also look much more professional once you are on site.
Forum: Pentax DSLR Discussion 10-02-2017, 05:25 PM  
What would happen if I were to use a crop lens with tc on the K1?
Posted By jatrax
Replies: 18
Views: 805
Just use the K-1 in crop mode. Simple. The teleconverter will result in roughly the same field of view but with some vignetting, light loss and whatever reduced image quality results from the extra glass.

An interesting hypothetical question but when light meets sensor just go with the simple solution.
Forum: Pentax K-S1 & K-S2 10-02-2017, 04:43 PM  
K-S1 to keep the dream alive?
Posted By jatrax
Replies: 15
Views: 472
If it was me I would watch for a used k-3 or k-3II. Might be a bit more money but that would fit my needs better. But those are my needs not yours so............
Forum: Pentax DSLR Discussion 10-02-2017, 01:27 PM  
What would happen if I were to use a crop lens with tc on the K1?
Posted By jatrax
Replies: 18
Views: 805
The camera would explode. No really...................:)

If the camera is in crop mode then the result would be very similar to that from the K-5 series. If not in crop mode then it depends on the lens but most likely there would be at least some vignetting or in some cases a lot of vignetting. But each lens will be different so testing will be required to see how good or bad the result would be.
Forum: Flashes, Lighting, and Studio 09-27-2017, 05:35 PM  
LED Ring "Flashes"
Posted By jatrax
Replies: 13
Views: 622
Marketing. And note that most I have seen are marketed on ebay so calling them flashes or strobes makes them sound more sophisticated and expensive. They are not flashes by any means, but for some purposes that is actually better.
Forum: Pentax SLR Lens Discussion 09-27-2017, 12:36 PM  
Dilemma with wide angle lens - Landscape photography
Posted By jatrax
Replies: 25
Views: 1,212
My hiking kit for the K-1 consists of the FA 20-35 f/4, the DFA 28-105 and possibly the DA*60-250. I carry 62mm filters with an adapter from 58mm for the 20-35. I also have a 67mm polarizer for the 60-250.

Granted the 20-35 is not nearly as wide as the 15-30 but I generally do not shoot that wide anyway, 20mm has always been enough for my style.
Forum: Digital Processing, Software, and Printing 09-27-2017, 08:42 AM  
Where to get Note Cards printed
Posted By jatrax
Replies: 3
Views: 206
If you have a printer try Red River Paper, they have both 5x7 and smaller 4.25 x 5.25

Inkjet Printable Greeting Cards Note Cards Card Stock
Forum: Photographic Industry and Professionals 09-20-2017, 07:25 PM  
What would you charge?
Posted By jatrax
Replies: 8
Views: 637
So you lost this job to his iphone?


Not sure I understand what you mean here???

If you are asking what someone would charge to shoot those photos, then likely you will get a variety of answers. But the reality is if the customer is happy with his iphone snaps then nothing is going to convince him he needs to spend money on 'better' pictures. It's like trying to convince someone who thinks McDonald's hamburgers are just great that they should spend $35 on a nice dinner. Just not going to happen, they do not see the value. (OK, maybe a loose analogy but you get the idea.)

I had a client who wanted images of their artwork for a website. Fused glass and difficult to shoot without reverse polarization. I quoted them $40 per image for shooting at their location, developing and color matching. They decided to shoot them with their iphone. And personally I was glad because by the time I hauled lights, stands, polarized filters and gear to their house, set up, shot and then went back and developed I doubt I would have covered my time. Not all gigs are good gigs.
Forum: Pentax SLR Lens Discussion 09-20-2017, 01:24 PM  
Lens choice advice
Posted By jatrax
Replies: 9
Views: 579
You need to define "results". The Bigma is far more versatile and in a quickly changing environment you will most likely get more images. However, the DA*300 is the clear winner in image quality (IMHO) so you need to think about what is important to you. Also, the DA*300 plus TC is going to be far lighter and easier to carry.
Forum: Troubleshooting and Beginner Help 09-17-2017, 03:34 PM  
Need advice on portrait lenses
Posted By jatrax
Replies: 20
Views: 916
Doing the math your 135mm has the same field of view on your K-50 as a 200mm lens. So not all that close.

Traditionally portrait focal lengths were 85mm to 135mm (on 24x36 film) but that is not a hard rule. You need to 'do the math' on any lens you are considering in order to make sense of things. The numbers for APS-C would be 56mm to 90mm giving you roughly the same field of view as 85mm to 135mm lenses on a full frame camera.

Personally I think 85mm is a bit longish on APS-C but as I said there is no hard rule, use what works for your style. The Pentax DA*55 f/1.4 is the standard portrait lens for APS-C by the way. Which closely matches the 85mm lenses field of view on 24x36.
Forum: Pentax Camera and Field Accessories 09-07-2017, 10:08 AM  
Breakthough X2 vs X4 image quality
Posted By jatrax
Replies: 13
Views: 634
Go here: Breakthrough Filters ? Breakthrough Photography Download the free 52 page long exposure guide. There are lots of other tutorials on the web but this one gives you the basics and shows some examples. Written by the owner of Breakthrough Photography.
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