Search results for 'back focus' - page 796
Samsung 12-24mm F4
price is £199.99 he mentioned, and that includes VAT. Not sure if he can get the VAT off it, nto sure what the procedure about claiming it back, but didn't want to pester him a lot as he is at work, he is one of the perfume sales rep in the terminals
Posted by aminstar on 13/07/2009 - 15:05
Samsung 12-24mm F4
Hi everyone I am back from an absolutely horrendous meeting with regard to these lenses. I am still fuming with the situation that occurred a couple of hours ago so before I sat down here to write I had to take a breather. I am not known to blow my top off, usually. I tend to keep my cool but ...
Posted by aminstar on 16/07/2009 - 21:31
Samsung 12-24mm F4
Well, I just got back after a tedious day at work and am catching up with this thread. I definitely DO NOT want to go into details AGAIN. If only people read the comments properly in order and checked the dates accordingly they would avoid making any wrong assumptions. But for what is worth I...
Posted by aminstar on 17/07/2009 - 20:56
Samsung 12-24mm F4
By the way John, I think it would be nice of you to allow Shim in again to post any comments. I understand the reasons why he was banned and I am not disputing that fact. But with this particular issue it would be nice to have him back here if not at least to comment how intensely and constantly I h...
Posted by aminstar on 17/07/2009 - 21:04
short telephotos
All 85mm lenses should be excellent as a slightly longer than standard lens is the easiest to design for an SLR. There is an 85mm f1.4 manual focus lens available new now, under various names, and a search on eBay will find it. The Pentax 85mm f1.4 designs will be mega-expensive. The SMC Penta...
Posted by johnriley on 11/07/2009 - 16:23
Teleconvertor for Sigma 150-500 HSM
Can anyone recommend a convertor to go with the above lens? The the Sigma 1.4EX Non-DG convertor (with the screw drive focus) I've got doesn't lock on to the lens. My very old Pentax 1.4s convertor does but the IQ isn't the best. I do a lot of cricket photography and the lack of a convertor for t...
Posted by cricketneil on 12/07/2009 - 21:16
Teleconvertor for Sigma 150-500 HSM
I had my 150-500 out today and thought I would give it a try with the TC. It took two or three attempts to get it to focus but the result was not as bad I expected.
Posted by Oggy on 19/07/2009 - 12:25
can back focus be fixed?
I just gave my lens (16-50 DA*) back to SRS and they will send it back to Pentax to have it fixed as it had back focus issues and they had none to swap it out with. Question is, can back focus be fixed? Is the lens not just faulty? Should I be requesting a brand new lens?
Posted by ericp on 12/07/2009 - 21:45
can back focus be fixed?
I would imagine that if it is a clear case of back focussing then it is 'not fit for purpose' and you would be entitled to a refund or replacement. How long ago did you buy it? By the way, I thought I had the same issue with my 16-50mm until realised I had the wrong focus settings in the K20D and...
Posted by BODYHEAT on 12/07/2009 - 21:57
can back focus be fixed?
I bought it less than a month ago. It took me a few weekends to make sure it was definitely back focus. I wanted a new lens but they insisted they had none in stock.
Posted by ericp on 12/07/2009 - 22:26
can back focus be fixed?
surely PENTAX have them in stock to be able to give you a like for like replacement? I would insist or ask for a complete refund unless you bought it at the old price and don't want to have to hunt around for another at that price. Less than a month? If it is faulty it is not fit for purpose and you...
Posted by BODYHEAT on 12/07/2009 - 22:37
can back focus be fixed?
The k10 and k20 can be adjusted for back and front focus more so on the k20.I think the k20 allows up to 20 lens adjustments and the k10 only 1. But its not a process i've tried:wink:
Posted by sanderscapes on 12/07/2009 - 22:41
can back focus be fixed?
I did buy it at the old price so I guess my options were limited. I really wanted to just swap it out as I don't know if a lens with back focus can be fixed. I have the K10 so no focus adjustments and even if I did, when I pay £450+ for a lens I want something that works. My Sigma and Tamron lenses ...
Posted by ericp on 12/07/2009 - 22:53
can back focus be fixed?
I know your frustration eric i had a sigma 18-50mm do the same.I sent it back to srs and got a credit note(my choice)from them.I later bought a DA16-45mm. Lenses can definately be calibrated which was an option i had at the time from sigma.But i preferred to send it to srs.:wink:
Posted by sanderscapes on 12/07/2009 - 22:59
can back focus be fixed?
It is a tough one. I can't help but feel that a calibrated lens will not be as sharp as a lens that was made correctly in the first place. I may not have minded if it was a £200-£300 lens but when you are spending nearly £500 it just doe not feel right. I want it to be the best lens in my bag. It...
Posted by ericp on 12/07/2009 - 23:10
can back focus be fixed?
Lenses can definately be calibrated which was an option i had at the time from sigma.But i preferred to send it to srs.:wink: I wonder how though... I can't see the lens paying any "active" part in the focusing. The lens doesn't say if it is in focus or not it simply moves nothing more right? T...
Posted by Anvh on 12/07/2009 - 23:40
can back focus be fixed?
There was a wonderful link a little while back to this topic. Essentially, lenses are made to within a certain tolerance, and so are camera bodies. This gives the possibility that if a lens is at one extreme of its tolerance, and the camera body at the other, the combination will seem awful. If, ho...
Posted by womble on 12/07/2009 - 23:48
can back focus be fixed?
Tolerance of what Kris, you got me totally lost there :D
Posted by Anvh on 12/07/2009 - 23:55
can back focus be fixed?
Womble, in case it came across like that I wasn't implying SRS were out of order. I was really saying that regardless of whether SRS have one in stock Pentax should simply swap it out on a matter of principle and good customer service. And if we're saying that Pentax UK doesn't have one in stock, no...
Posted by BODYHEAT on 12/07/2009 - 23:57
can back focus be fixed?
"SAFOX" stands for Sensor Ability Fortifying Optical Compensating System. It has gone through four revisions, with SAFOX-I being used in the SF series AF bodies, and SAFOX-IV being used in the ZX/MZ bodies. All SAFOX-type lenses are fully compatible with all SAFOX bodies. Basically, this means that ...
Posted by Anvh on 13/07/2009 - 00:06
