Search results for 'back focus' - page 971
Will this fit my K5
Should do, and it'll be fully functional (except for focus) if you put it on the A setting.
Posted by Pentaxophile on 02/06/2011 - 19:33
Will this fit my K5
Ah didn't look at that. Will check it when I get back.
Posted by richardhurst on 02/06/2011 - 19:56
Pentax 60-250 Problem
Hi all, I purchased a Pentax 60-250 lens brand new 3 weeks ago. The night I bought it I took some photos to check that everything was working fine. Ive gone to use it for the first time since the night I bought it and it wont focus. The manual focus still seems to work, but nothing happens w...
Posted by MattMoore on 02/06/2011 - 22:48
Vivitar 35-70 f2.8-3.8
I saw one of these lenses in a camera shop yesterday, and as it was in mint condition (and it's the same shop where I found my Sigma 24mm Super-wde II and Pentax 50mm f1.4 for £30 each) I took a punt and paid the £20 they were asking for it. I can't find much online about it, and was wondering if a...
Posted by aliengrove on 03/06/2011 - 08:50
Vivitar 35-70 f2.8-3.8
I can't find much online about it, and was wondering if anyone knew what the P setting on the aperture ring is for? I thought it would be the same as the A setting on my other manual focus lenses, but it does not seem to be. It's a Ricoh "PK-AR" mount: The hazard from the infamous Ricoh "pin" is ...
Posted by johnwhit on 03/06/2011 - 09:13
Vivitar 35-70 f2.8-3.8
Hmmm.....the lens I have does not appear to be either of the problem ones (no ball or thin wire pin). The lens fits fine and the lens mount looks identical to my other manual focus primes, with a rectangular pin. The only problem seems to be the lens stays wide open when mounted on my K7. The mount ...
Posted by aliengrove on 03/06/2011 - 12:49
recommend a macro lens please
Hi, Up until now I've been using my compact for 'macro' shots and have been happy with it. Sample shot- http://www.photoblog.ie/2011/05/15/drops-of-sunshine-2/ But obviously a dedicated macro lens on a Dslr has to be better so I might as well buy one, try it out. If I don't like it I can sell it...
Posted by dinneenp on 03/06/2011 - 15:19
recommend a macro lens please
If you're using it mainly for macro, then a manual focus lens will work fine. However, as macro lenses tend to be so sharp, you'll find yourself using them elsewhere and AF will be handy. As an example, my 100mm macro is one of my favourite lenses by quite a long shot. For 1:1 reproduction, the o...
Posted by Cuchulainn on 03/06/2011 - 15:28
recommend a macro lens please
Pentax have 3 true macro lenses in their current lineup, at 35, 50, and 100mm. All are AF/MF, but I wouldn't be put off buying an older MF only lens. To any of those you could add extension tubes or a bellows to get greater than 1:1 magnification. You'll get varying opinions about which lens to u...
Posted by Mannesty on 03/06/2011 - 17:18
recommend a macro lens please
Prices have got silly, but the old Pentax 100mm f4 (sold as SMC Pentax and SMC Pentax-M, same lens, different lettering) still holds its end up pretty well judging by the test shots I've seen. I seriously considered buying one but realised that I don't do much macro photography. One trick which ...
Posted by Dangermouse on 03/06/2011 - 23:44
recommend a macro lens please
Thanks for the replies. Just a few more questions: What's the cheapest I'd get a 1:1, f2.8, any focal length, auto focus for? And what lens with 1:1 would be the cheapest (any focal length, any aperture)? Or less magnification but with extension tube or whatever else is needed? Lastly are the ...
Posted by dinneenp on 06/06/2011 - 11:23
recommend a macro lens please
The Cosina macro is excellent IQ in a plastic build for little money. It is 1:2 but comes with an matched adapter for 1:1. But get the manual focus version as it's better (apparently - I do not own both). Not sure why you'd want autofocus for macro, especially in the 1:1 range.
Posted by rparmar on 06/06/2011 - 16:04
recommend a macro lens please
Further on Kim's remarks... Depth of field suffers proportionately with increased magnification. This results in two issues. First, focusing is a lot more critical. A tripod is a necessity and macro rails recommended. Second, you have to stop down more to get enough of your subject in focus. ...
Posted by rparmar on 06/06/2011 - 17:10
recommend a macro lens please
What's my budget? I haven't decided yet. I suppose that I could look at it two ways- buy the cheapest available (manual focus) and try it out. If I really like it then I could upgrade. Or buy a macro lens that's great for portraits too. I have a 4 and 1 year old so it'd get used a fair bit I'd imag...
Posted by dinneenp on 08/06/2011 - 14:18
recommend a macro lens please
If you go for the Tamron 70-200/2.8 it offers macro focussing. I'm not sure how close it will focus (suspect it's more of a close focus than a true macro) but it might bridge a gap while you save for the dedicated lens? I'm planning to buy one as I want a fast AF telephoto zoom, the macro will be...
Posted by Dangermouse on 11/06/2011 - 17:34
recommend a macro lens please
May or may not help, but, first picture is with a A 50mm f1:1.2 Pentax lens at f1.2 at the closest focus I could get, then a Sigma 105 Macro lens wide open at f2.8 and lastly, the Sigma 105 at f11, both at the closest focus I could get. This should give you and idea of the difference between a n...
Posted by Galoot on 11/06/2011 - 18:11
Got me a new zoom lens - for a fiver!
A long time ago I'd obtained the 50-200mm kit lens, but I'd never really used it since the images were never particularly sharp. By f/8 it was improved, but that precluded using it for shots with restricted depth of field. I'd carefully adjusted the AF, but it was never worth using at f/5.6. I sus...
Posted by karma mechanic on 03/06/2011 - 17:28
A* 200mm f2.8 - first shot
Bought one of these beauties a couple of weeks ago. Today was the first opportunity to use it - I saw a strange insect fly into my back garden, I ran to the house to put the 100mm Macro on but stopped and though why not try the 200mm (which was still on the camera from "playing"). Here is the res...
Posted by LennyBloke on 03/06/2011 - 19:25
DA 35mm f2.4 on 35mm Film SLR
That is true Stefan, so no control. However having the unused MZ-50 sat on the shelf, unloved, might bring it back into use with certain lenses. :D
Posted by Offertonhatter on 04/06/2011 - 22:56
12-24mm or 15mm
I would go for the Sigma 10-20 :) I agree, better bang for buck than the 12-24mm! At 12mm it is pretty distortion free and plenty sharp. Most comparisons compare the Sigma at 10mm to the Pentax at 12mm, which is unfair! I was satisfied enough with the Sigma at 15mm to banish all thoughts of the DA15...
Posted by Pentaxophile on 06/06/2011 - 08:48
