Search results for 'back focus' - page 1148
DA* 300 noisy focus
[quote:3496ace15f="Dave-L"] 2. When turning the focus ring manually, it is allowed to continue turning well beyond the infinity and minimum focus marks respectively, on the focus scale... and I do mean a long way beyond. There is no 'stop' e.g. like my 100mm DFA, and I daren't even try and see how...
Posted by JohnX on 01/12/2014 - 14:54
DA* 300 noisy focus
Is there any play in your focus ring though, however slight (enough to make a little click when trying to rock it at the rear from side to side, without turning it)? I can also slide the corner of a sheet of writing/typing paper between the focus ring and lens barrel, though only by about 1/4 of an...
Posted by Dave-L on 01/12/2014 - 15:37
DA* 300 noisy focus
If I may add to this thread as my concerns are in some ways similar, I too have an Amazon '£639.99' 300mm DA* special and for two days, have thought all is well. It may be, and the image quality leaves nothing to be desired, however, I have two slight concerns (apart from the usual tricky-to-fit len...
Posted by gtis on 01/12/2014 - 18:29
DA* 300 noisy focus
[quote:3496ace15f="Dave-L"] Is there any play in your focus ring though, however slight (enough to make a little click when trying to rock it at the rear from side to side, without turning it)? I can also slide the corner of a sheet of writing/typing paper between the focus ring and lens barrel,...
Posted by JohnX on 01/12/2014 - 20:55
DA* 300 noisy focus
OK chaps, thanks to you both for the information, all is clear. I clearly have nothing to worry about and I can get on with taking some actual photos! :D
Posted by Dave-L on 01/12/2014 - 23:00
Pentax * Lenses
I have owned the 55, 50-135, 60-250 and the 300. The image quality from all them was just stunning, to me. The 55 was ridiculously slow to focus, but super iq the others were fantastic. Dont own any of them anymore and i regret having had to sell them. You're not likely to be disapointed with the p...
Posted by derek897 on 03/12/2014 - 11:09
Pentax 50-135 will not auto focus on some of my models
For some reason my SMC Pentax DA -50-135 lens will no longer auto focus when used with my K10 or my newer K7. I was just about to take the lens to the dealer to send away and decided to haul out my two older *isD models, *isD S and *isD L. Focuses instantly without an issue. My other Pentax l...
Posted by almierau on 03/12/2014 - 03:42
Pentax 50-135 will not auto focus on some of my models
It sounds like the in-built motor is not working. I think the older two bodies use the focusing motor of the camera (rather than the lens) as they can't use in-lens motors. Check if all the electrical contacts on the lens and the cameras are clean. The AF motor contacts are the ones slightly in...
Posted by Jonathan-Mac on 03/12/2014 - 08:36
Pentax 50-135 will not auto focus on some of my models
Had identical problem, Pentax couldn't get a new motor quickly so replaced the lens For some reason my SMC Pentax DA -50-135 lens will no longer auto focus when used with my K10 or my newer K7. I was just about to take the lens to the dealer to send away and decided to haul out my two older *is...
Posted by Daronl on 03/12/2014 - 09:51
Pentax 50-135 will not auto focus on some of my models
Found the solution. A Canon user in Scotland advised me to perhaps turn off the stabilization feature on both the K7 and K10. That was something I had not thought of. When I did that the lens focused properly. I then turned the stabilization back on and the lens still focuses. And this may hav...
Posted by almierau on 03/12/2014 - 13:17
Macro and Wide Angle front Convertors
the wife uses them on her bridge camera with some good photos but they are very fiddley to get to focus but if you want to play then they are not to exspencive think i payed 15 pound for a polaroid set las xmas may i ask where you are from regards stu
Posted by stu62 on 07/12/2014 - 17:39
Pentax HD DA AF 1.4x AW Rear Converter
Hi, can anybody advise what lenses are fully compatible with the 1.4 converter, I have the following lenses: SMC PENTAX-DA FISH EYE 3.5 - 4.5, 10 - 17MM ED (IF) SMC PENTAX-DA 3.5 - 5.6, 18 - 135 MM ED AL (IF) DC WR SMC PENTAX -DA 4.5 - 5.8 55 - 300 MM, ED Will the auto focus on the 1.4 x conve...
Posted by alankemp on 08/12/2014 - 20:44
Pentax HD DA AF 1.4x AW Rear Converter
I was planning on getting the Pentax teleconverter to use with the DA 55-300 F4-5.8 ED WR but now having second thoughts. Anyone know what the Sigma teleconverters are like? The Sigma TC's are not better than the Pentax 1.4 TC, they will not be any more effective with your 55-300 than the Pentax one...
Posted by davidstorm on 08/12/2014 - 22:52
older macro lens
There's also an Elicar 90mm that gives greater than life size reproduction. There are exceptions to everything and I think Zeiss even made some f/2 macro lenses. If looking at manual focus, some are not cheap even now, so I'd think about a screw thread or early bayonet 50mm f/4 or 100mm f/4 from ...
Posted by johnriley on 09/12/2014 - 10:30
older macro lens
I had the DFA 100MM macro and the manual focus Tamron 90mm f2.8 72b, still got the tamron and sold the Pentax, Nowt wrong with the image quality but the build quality left a lot to be desired.I have also reaquired an M 100mm f4 which I always regretted selling. Old macro glass is still some of the...
Posted by geordie01 on 09/12/2014 - 12:54
older macro lens
I have most every possible item available in PK, which includes some limited macro options. But macro and PK can barely be used in the same sentence. Considering how long PK has been around; how many lenses are generally on the market; either now or back in time... There are not very many true...
Posted by 50mpCMOS on 09/12/2014 - 16:08
Query about DA 55-300 f4-5.8 ED
slow down guys :wink: the 120-400 is 2nd hand at £400 but the 50-500 is about £900, this conversation started with a £240 55-300 :( at this rate I'll need to sell the wife hehe we all get carried away, especially when spending someone else's money :) There's not many options below £300 for Penta...
Posted by Russ on 17/12/2014 - 20:59
Query about DA 55-300 f4-5.8 ED
The 120-400 actually looks like the kind i could live with, the 55-300 may be nice optics but i don't think i could live with the focus action after using the 18-135 it's night and day.
Posted by Tngc on 17/12/2014 - 21:27
77mm 1.8 limited lens
Have any K5II any experience of using this lens please? Does it have autofocus and manual focus capability? - any comments re focussing speed please? I'm particularly interested in this lens for documenting daily life of kids indoors and would welcome any user comments please!
Posted by nj1975 on 18/12/2014 - 22:24
77mm 1.8 limited lens
Hello, The 77mm f/1.8 lens does have AF and manual focus. The focussing speed is generally quick. You state that you want to shoot indoors. That changes the usefulness of this lens as it may tend to be too long on a cropped sensor for indoor shots. The 50mm f/1.4 may be a step in the right direct...
Posted by K10D on 18/12/2014 - 22:35
