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Forum: Pentax SLR Lens Discussion 09-05-2017, 08:21 PM  
New Ultra Wide Rectilinear Lens Decision - Irix 11mm F/4 v Venus 12mm f/2.8
Posted By cataseven
Replies: 31
Views: 9,346
I watched a video and the metal hood was epic :)
















Youtu.be



Forum: Pentax SLR Lens Discussion 09-05-2017, 11:24 AM  
New Ultra Wide Rectilinear Lens Decision - Irix 11mm F/4 v Venus 12mm f/2.8
Posted By cataseven
Replies: 31
Views: 9,346
One more question :)

Does the metal lens hood scracth the lens?
Forum: Pentax SLR Lens Discussion 09-05-2017, 10:27 AM  
New Ultra Wide Rectilinear Lens Decision - Irix 11mm F/4 v Venus 12mm f/2.8
Posted By cataseven
Replies: 31
Views: 9,346
Hi,

Is your BHPhoto copy ok? Have same problem?
Forum: Photographic Technique 06-28-2017, 04:30 AM  
Macro Using Macro Lens for Coupling?
Posted By cataseven
Replies: 7
Views: 1,656
Hi All,

Do I lose magnification or image quality (vignetting etc.) if I use D FA 100mm macro lens as primary (attached to body) and 43mm as a secondary (reversed)? Or in other words, Can I use a macro lens for coupling? Is it a must to use non macro lenses for coupling?

Thanks.
Forum: Pentax SLR Lens Discussion 06-10-2017, 02:12 AM  
Irix 15mm Blackstone stuck on F--
Posted By cataseven
Replies: 9
Views: 2,226
Does the lens have A mode button on its body?
Forum: Pentax SLR Lens Discussion 06-07-2017, 06:46 AM  
Help with Tamron 17-50mm
Posted By cataseven
Replies: 11
Views: 1,064
Tamron 17-50 is famous with its backfocus problem but once you repair it or solve it with AF Fine Tune on your camera you will get very sharp images
Forum: Pentax SLR Lens Discussion 06-02-2017, 01:57 AM  
Is it just my lens or... Pentax D FA 24-70 f/2.8
Posted By cataseven
Replies: 28
Views: 5,817
I have same problem. I informed local distributor and they will ask to Ricoh for replacement with new copy. Still waiting... (I will update this quote)
Forum: Pentax SLR Lens Discussion 05-24-2017, 07:22 AM  
Pentax K-x - General purpose lens to buy?
Posted By cataseven
Replies: 26
Views: 2,041
If sharpness and aperture is important tamron 17-50. If not 18-135. 18-135 was my favorite on k-01. Excellent colors
Forum: Pentax SLR Lens Discussion 05-23-2017, 12:26 AM  
New DA* lenses - SDM in 2017
Posted By cataseven
Replies: 18
Views: 2,781
Pentax produced its new! 24-70mm with SDM tech again. I think they are confident with it so that they are keeping it.
Forum: Pentax SLR Lens Discussion 05-19-2017, 09:45 AM  
Lens sugestions
Posted By cataseven
Replies: 26
Views: 1,798
I used 16-45. It is cool. Sharp and colors are very good. Also 18-135 is very good. (I dont know it's price at present)
Forum: Pentax SLR Lens Discussion 05-16-2017, 06:45 AM  
Sigma 30mm 1.4 EX vs. Art advice needed
Posted By cataseven
Replies: 10
Views: 6,088
I am not fan of color rendering pf Sigma lenses on pentax body. I would go for used fa 31mm
Forum: Pentax SLR Lens Discussion 05-05-2017, 11:19 AM  
K-3 HELP Please~I have tried everything & having trouble with focus~AF & Manual
Posted By cataseven
Replies: 16
Views: 1,907
Which lens?
Forum: Pentax SLR Lens Discussion 05-05-2017, 04:44 AM  
Sharpness of Crop Lenses on Full Frame Body
Posted By cataseven
Replies: 13
Views: 1,457
Thanks all
Forum: Pentax SLR Lens Discussion 05-05-2017, 03:33 AM  
Sharpness of Crop Lenses on Full Frame Body
Posted By cataseven
Replies: 13
Views: 1,457
So we can say that sharpness in the centre are perfect, can't we? So, for portraits using da* 55mm on k-1 is a good choice as the subject will be in the centre mostly?

I am asking because i am considering to replace my k-3 to k-1. I am not sure to buy 55mm f1.4 or wait for upcoming d fa 85mm or d fa 50mm? If i buy 55mm now, i can use it for 1 year with my k-3 and spend less money for my k-1 operation :)
Forum: Pentax SLR Lens Discussion 05-05-2017, 02:40 AM  
Sharpness of Crop Lenses on Full Frame Body
Posted By cataseven
Replies: 13
Views: 1,457
I mean, does a crop lens perform better on ff body than crop body? Lets say it is da* 55mm f1.4
Forum: Pentax SLR Lens Discussion 05-05-2017, 01:40 AM  
Sharpness of Crop Lenses on Full Frame Body
Posted By cataseven
Replies: 13
Views: 1,457
Hi All,

By keeping the vignetting out of question, can we say that crop lenses which are compatiable with full frame body (such as DA*55mm) performs better in terms of sharpness?

Thanks.
Forum: General Photography 05-04-2017, 10:09 PM  
Support Pentaxians on 500px!
Posted By cataseven
Replies: 16
Views: 3,152
Hi all,
Forum: Pentax SLR Lens Discussion 04-27-2017, 02:56 PM  
What lens would be the best purchase for me at this time?
Posted By cataseven
Replies: 20
Views: 1,864
I used tamron, sigma and 18-135. Sigma and tamron are sharp (sigma little bit sharper but not big difference) however ı would go for tamron because i think it has much better colors.

18-135 was beyond the expectations especially in terms of color rendering. I used it with k-3 and k-01. I recommend it.

I did not use 16-85 but it has good range, good picture quality and also it is WR.

My suggestions

1- if you want carry just one lens go for 16/85
2 - if you are ok with two lenses then you can pair tamron and 18-135 (it is WR) or tamron and one of 55-300 lenses, even DAL 55-300 (cheaper)
Forum: Pentax SLR Lens Discussion 04-20-2017, 09:05 PM  
Sigma 85mm f1.4 or FA 77mm f1.8 or just wait for DFA 85mm f1.4
Posted By cataseven
Replies: 22
Views: 5,924
Please watch this.
















Youtu.be



Forum: Pentax SLR Lens Discussion 04-20-2017, 02:41 AM  
Sigma 85mm f1.4 or FA 77mm f1.8 or just wait for DFA 85mm f1.4
Posted By cataseven
Replies: 22
Views: 5,924
What about ff lenses on k3 apsc? Would u wait for dfa in that case? (in terms of sharpness and Megapixel loss)
Forum: Pentax SLR Lens Discussion 04-19-2017, 11:08 PM  
Sigma 85mm f1.4 or FA 77mm f1.8 or just wait for DFA 85mm f1.4
Posted By cataseven
Replies: 22
Views: 5,924
Thanks all.
Forum: Pentax SLR Lens Discussion 04-14-2017, 09:46 AM  
Sigma 85mm f1.4 or FA 77mm f1.8 or just wait for DFA 85mm f1.4
Posted By cataseven
Replies: 22
Views: 5,924
Actually DA 55mm is on my BH Photo wishlist :) but i also have sigma 17-50 f2.8 and so not sure to buy 55mm. Of course f1.4 is will make difference but in terms of focal length i am looking for something different.

SM-A500F cihazımdan Tapatalk kullanılarak gönderildi
Forum: Pentax SLR Lens Discussion 04-14-2017, 04:52 AM  
Sigma 85mm f1.4 or FA 77mm f1.8 or just wait for DFA 85mm f1.4
Posted By cataseven
Replies: 22
Views: 5,924
Hi All,

I am considering to buy a medium telephoto lens for my k-3. I would be happy to get your thoughts. given the k-3 have APS-C sensor which one would you go for?

Sigma 85mm f1.4 EX DG HSM
SMC FA 77mm f1.8
wait for DFA85mm f1.4
or considering the sharpness issue of FF lenses on APS-C sensors 55mm F1.4 SDM?

Thanks in advance.
Forum: Welcomes and Introductions 04-14-2017, 04:36 AM  
Hi.
Posted By cataseven
Replies: 3
Views: 468
Hello pentaxians, glad to be in the forum finally.

Cheers,

Cenk
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