Search results for 'back focus' - page 669
Your Help/Advise [ Lens ]
You're quite right, it's bound to turn up on someone's search results so it's worth having an answer set down. My excuse for not answering initially? I wasn't a member of this forum back then... :wink:
Posted by hefty1 on 25/06/2008 - 14:45
£1.25 per millimeter
ok I think there has been some bid cancelation going on, that KA mount was at £64 before I went out this evening I'm sure it was! now it's back to a much more sensible £16.
Posted by Mongoose on 10/05/2007 - 22:52
Pentax 24-90mm ; Photozone.de reviews
I'm glad it's arrived safely and you're pleased with it. If you confirmed receipt, I haven't had it. No doubt my email prog. I get so much spam nowadays that quite a lot of good stuff gets thrown out like the baby with the bathwater. It's a well-travelled lens, incidentally. I got it from Cal...
Posted by George Lazarette on 06/05/2007 - 12:51
aperture blades
people seem to find that a high number of aperture blades gives a better bouquet. I am looking forward to try something out. Today I was looking to some old stuff my dad got from someone. It was a nice kit with an old Praktika SLR (rebadged for the Netherlands as a "Pentor Super TL". It ...
Posted by golfdiesel on 13/05/2007 - 21:42
Minolta to K-mount converter
thats what Sunday evenings are for :) I just checked with a quick google and the MD mount flange to film distance is about 2mm shorter than that for the K mount, so non-optical adaptors which allow infinity focus are not possible.
Posted by Mongoose on 14/05/2007 - 10:37
SMC-FA 50mm f/1.4 versus SMC-FA/F 50mm f/2.8 macro
The 50/1.4 is an absolutely sublime lens (either SMC-F or -FA). It is perfect for portraits and very low level light. Astonishingly sharp too, but the fact it can open up to f/1.4 means you can focus on the eyes and not get the skin in focus! :shock: Needless to say, that at f/2.8 and wider your foc...
Posted by MattMatic on 14/05/2007 - 11:59
SMC-FA 50mm f/1.4 versus SMC-FA/F 50mm f/2.8 macro
Would I get the same quality from an SMC PENTAX-M 1:1.4 50mm lens? All the Pentax 50mm and 55mm lenses are very good indeed, and differences are minor. The macros, of course, are the sharpest. Be aware that, macros aside, Pentax 50s tend to be softish wide-open. This is especially true of the t...
Posted by George Lazarette on 20/05/2007 - 12:30
SMC-FA 50mm f/1.4 versus SMC-FA/F 50mm f/2.8 macro
But I wouldn't have this problem with a lens like the SMC M 1:1.4 50mm? You'd have other problems :P If you use a very wide aperture (like f/1.4) in low lighting then the depth of field is unbelievably narrow. So narrow that you can get the eyes in focus but not the nose! So focus is sooooo criti...
Posted by MattMatic on 21/05/2007 - 09:34
SMC-FA 50mm f/1.4 versus SMC-FA/F 50mm f/2.8 macro
your comment about your intended use for the lens made me think of these. I took these shots recently while visiting relatives in Canada. It was indoors and overcast and I didn't have a flash with me. Not wanting to resort to the built in flash, I mounted my trusty SMC-A 50 1.7. I don't...
Posted by Mongoose on 22/05/2007 - 13:15
SMC-FA 50mm f/1.4 versus SMC-FA/F 50mm f/2.8 macro
edit: calling to mind a recent thread which was accidentally hijacked, I would like to make it clear that I have posted these shots as an example of the capabilitys of the nifty fifty and I am not looking for critique here That's just as well coz they're terrible! Joking apart, the second one is...
Posted by George Lazarette on 22/05/2007 - 13:36
Shooting wildlife
I tend to specialize myself in nature photography, both distant and macro. For the distance work I have 2 main lenses I use. The first is the Sigma 500mm APO f4.5 which for some reason that I haven't yet figured out (may be me!) seems to produce better results when coupled to my *istds than my new ...
Posted by genesisphil on 22/05/2007 - 18:08
I can't afford anything!
Set the aperture of the 50mm to wide open, then you have all the exposure controlled by the zoom lens. AF is not likely to work but macro shots are best attempted using manual focus anyway. If you've never tried it, you'll be amazed. As a test, simply hold a 50mm lens reversed against a 200mm len...
Posted by Mannesty on 18/05/2007 - 22:17
I can't afford anything!
No, much better. That one was taken with a Canon. If you have two suitable lenses and appropriate lighting, or strong daylight, just try it. Then come back and show us some macro pics. I did exactly this the other day. SMCP-F 70-210 on K10D, SMCP-F 50mm 1:1.7 reversed. Then SMCP-FA 100mm Macro o...
Posted by Mannesty on 18/05/2007 - 22:28
I can't afford anything!
No, much better. That one was taken with a Canon. :lol: Then come back and show us some macro pics. OK!!!! :)
Posted by the_drewster on 18/05/2007 - 22:31
I can't afford anything!
1:2.8 means a maximum aperture of f/2.8 Macro means the ability to focus very close, properly used with specialised lenses focusing to give magnifications of half life size (1:2) or life size (1:1). In the latter case, for example, this means an object 1cm long would be 1cm long on the film/CCD. ...
Posted by johnriley on 19/05/2007 - 11:57
I can't afford anything!
What does the numbers mean before the mm? i.e. 1:2.8. Are these the max apperture values? I have an 18-55mm. Now I thought the mm signified whether it was a wide angle/normal/telephoto. Like a 17mm, must be a super macro Macro, right? But I've seen Macros such as the Sigma 70mm F2.8 EX DG Macro....
Posted by George Lazarette on 19/05/2007 - 15:19
I can't afford anything!
My lens is manual focus, and 20 years old. So it's not worth as much as a new one. True, but the quality will be just as good as a new one.
Posted by johnriley on 19/05/2007 - 15:26
I can't afford anything!
My lens is manual focus, and 20 years old. So it's not worth as much as a new one. True, but the quality will be just as good as a new one. For mounting on the front of the 50-200 backwards... Yes it should be very good. I have an old SMC A 50 1.7 (might be an A50 2.0 or 1.4, not looked at it ...
Posted by Tyr on 19/05/2007 - 16:22
I can't afford anything!
[quote:5fa35129f4]My lens is manual focus, and 20 years old. So it's not worth as much as a new one. True, but the quality will be just as good as a new one. For mounting on the front of the 50-200 backwards... Yes it should be very good. [/quote:5fa35129f4] I thought Georges lens was a macr...
Posted by the_drewster on 19/05/2007 - 17:22
I can't afford anything!
I thought Georges lens was a macro that wouldn't need stacking. 1: It is. 2: It doesn't. But you said "I can't afford anything" ! ! ! A macro lens is designed such that it can focus from infinity down to very short distances. When focussing at these short distances, its behaviour is...
Posted by Mannesty on 19/05/2007 - 18:19
