Search results for 'back focus' - page 1153
Pentax Forums first impressions of the new 16-85mm
I think the logic was that they were comparing the kit lens options, the 17-70mm isn't one of them. Yes that was my thinking too John but my feeling is that this is the 17-70's replacement, I'd like to see a test run between the two to see if it's worth keeping mine against this one, I nearly pulled...
Posted by jules on 24/02/2015 - 23:12
Pentax Forums first impressions of the new 16-85mm
The 16-50, just isn't that good, I've had two and the 17-70 is better optically or at least for my needs, it is sharper across the frame than the 16-50, from the smalll sample I have (Two of each), or to put it in context has a more even distribution of sharpness. To me as a landscape shooter, this ...
Posted by jules on 26/02/2015 - 05:33
Pentax Forums first impressions of the new 16-85mm
The 16-50, just isn't that good, I've had two and the 17-70 is better optically or at least for my needs, it is sharper across the frame than the 16-50, from the smalll sample I have (Two of each), or to put it in context has a more even distribution of sharpness. To me as a landscape shooter, this ...
Posted by LennyBloke on 26/02/2015 - 08:24
Pentax Forums first impressions of the new 16-85mm
"Sorry Jules, I can't agree that "the 16-50, just isn't that good" - some of us have had bad experiences with particular lenses, and I suspect you've been particularly unlucky with your 16-50's. I've had 2 17-70's - the first had an inability to lock focus in many situation (so was returned), the ...
Posted by jules on 26/02/2015 - 09:44
A subjective look at the 16-50mm F2.8 SDM...
How they can say that the focusing is 'very fast' beats me. I've just had a new SDM motor fitted in mine and it is still extremely slow. I've tried it on three different bodies and it's the same on all of them. Never regarded it as particularly fast but not pedestrian, like to 50-135 can sometimes b...
Posted by jules on 26/02/2015 - 23:43
Effect of AF fine tuning left on
I have noticed in the last 6 months or so that my photos are slightly (very slightly) out of focus using my sim 16-50 on my k5. The lens as you alol know is very sharp so it is quite noticeable this new problem. Looking into focus charts etc I have noticed that I had previous (stupidly) left the AF ...
Posted by mattox on 01/03/2015 - 12:41
Effect of AF fine tuning left on
I had a Sigma 24-60 f2.8 which I used for years at f11 & f16 & f22 for landscapes etc. but then I tried it at f2.8, f4 etc. and it was hopelessly out. I could not adjust it either way on the camera so I sent it to Sigma. They said because it was old it would cost a lot to repair IF they had the part...
Posted by vic cross on 07/03/2015 - 10:39
Cheap Lenses on E bay
I just got a Makinon 28-80 mm F/3.5 Ø72 MC from e bay for 20 quid, Ok it is manual focus but the lens is amazing for the money, Have also picked up a few 50mm lenses for next to nothing and also a 35-70, all manual focus and all still provide decent results. Anyone else buy exotic /unusual make...
Posted by BruceStrachan on 02/03/2015 - 07:55
Cheap Lenses on E bay
I store lenses on the shelving in the computer room. It's warm and dry and plenty of air circulates. There is not a huge amount of dust in here, but in any event both front and back caps are on each lens. Nothing stupid about the question at all.
Posted by johnriley on 04/03/2015 - 13:11
SRS have the new FA lenses for a week to play with until 11th
This came up on facebook, if theres anyone going then I'd be interested in feedback on the 70-200, in particular the speed of focus. Regards George
Posted by carmagw on 04/03/2015 - 10:25
Tamron sp 90 (272E) - Won't focus to infinity
I went to use my SP90 macro today and for all close-up shots everything was fine (I was taking the butterflies at RHS Wisley). However, when I tried to focus on something far away - I found that it wouldn't focus beyond about 15 feet. It appears as if the focus limit mechanism has stuck at the lon...
Posted by swarf on 05/03/2015 - 18:12
Tamron sp 90 (272E) - Won't focus to infinity
I'm sure you have, but have you checked the focus limiter button?
Posted by JohnX on 05/03/2015 - 19:19
Tamron sp 90 (272E) - Won't focus to infinity
I'm sure you have, but have you checked the focus limiter button? Yep - first thing I checked. Phil
Posted by swarf on 05/03/2015 - 19:23
Tamron sp 90 (272E) - Won't focus to infinity
I'm sure you have, but have you checked the focus limiter button? Yep - first thing I checked. Phil That's exhausted all my original thoughts for 2015 then :) Unfortunately looks like the lens will be off to Tamron for service :(
Posted by JohnX on 06/03/2015 - 10:47
Tamron sp 90 (272E) - Won't focus to infinity
If it is not off to service just yet... Has the lens been tried out on a second camera body yet? That even if one doesn't own a second body then perhaps one could find another Pentax body from a friend or retail store
Posted by 50mpCMOS on 06/03/2015 - 22:55
Tamron sp 90 (272E) - Won't focus to infinity
If it is not off to service just yet... Has the lens been tried out on a second camera body yet? That even if one doesn't own a second body then perhaps one could find another Pentax body from a friend or retail store Thanks for the suggestion - I hadn't, but have now. Unfortunately no differenc...
Posted by swarf on 07/03/2015 - 09:22
Help with lense choice please
No contest for me......Sigma all the way, Pro's Its f/2.8, Its all internally Zoomed & focussed (doesn't grow on Zoom or Focus) Has the fast, accurate HSM, possibly more reliable than the SDM on the 60-250 Is very quiet during focussing... Switchable Image stabilization Solid as a rock qual...
Posted by andy_bell on 09/03/2015 - 20:29
Help with lense choice please
if you are quick there is a 18/135 in the clasified on here for £150 srs as a 1.4 converter for les than £100 The converter needs to be the type with "Pz" (which were designed to operate with the old Pentax power zoom lenses) in the name, because only those have the contacts and connections which...
Posted by jeallen01 on 10/03/2015 - 19:33
Help with lense choice please
if you are quick there is a 18/135 in the clasified on here for £150 srs as a 1.4 converter for les than £100 The converter needs to be the type with "Pz" (which were designed to operate with the old Pentax power zoom lenses) in the name, because only those have the contacts and connections which...
Posted by jeallen01 on 16/03/2015 - 08:24
Lens conundrum
Thats interesting .... I do recall noticing occasionally, and wondering what was going on, that when focusing closely with the F35-70, that as I turned the focus ring I saw the edges of the frame move in and out slightly, and I thought I was somehow turning the zoom ring by accident.
Posted by McGregNi on 10/03/2015 - 19:09
