Search results for 'back focus' - page 777
50mm lenses
Max If you really want to try the manual focus go for the A 1.7 or 1.4 Image quality will be great on both. If you cant get one at the right price go for the f2 The f1.2 will cost an arm and a leg, and the image quality will not be better than the 1.4 or 1.7, and may even be softer until f8...
Posted by pschlute on 20/05/2009 - 22:26
50mm lenses
Thank you guys! probab I ll get one of those I think the FA 50mm f1.4 would be a good choice for you if you don't plan to buy an auto focus f2.8 zoom that covers 50mm any time soon. do you mean the 50mm f2.8 macro?
Posted by max11 on 20/05/2009 - 23:09
50mm lenses
A big thanks to the help I had with settings on my K200D. I have finally "got it" Now using 'A' manual lens successfully. The green button sets the shutter speed on this camera. And as was suggested, must be used in catch in focus mode. Being newbie, took a while to get my head round it.:? ...
Posted by chrissinkpen on 21/05/2009 - 07:31
Bodging a Jupiter
I did just that, a few weeks ago with a Pentacon 50mm f1.8. It is very easy. The procedure: Remove the spring clip from the adapter. Screw the adapter on the lens as tightly as you can by hand. Now you need to find exactly where to drill the hole for the locating pin. Coat the end of the pin wi...
Posted by mowog on 15/05/2009 - 17:14
XR Rikenon 1:2 50mm - a sharp lens?
I love these urban myths..... I'm sure that's the leg..endary lens these Rikoh armchair glass ball gazers have all been talking about. Legend has it that if you rub the lens so hard that the focusing distance scale disappears the "Genie of the Lens" magically improves it's resolution and contrast be...
Posted by shim on 18/05/2009 - 15:59
XR Rikenon 1:2 50mm - a sharp lens?
The best way of improving lens performance is focus correctly and eliminate camera shake. Well yes, this is true, of course, but I think it's taken as a given - otherwise what's the purpose of any comparative reviews of equipment? You say "I'm sure that's the legendary lens these Rikoh armchair ...
Posted by J2R on 18/05/2009 - 16:18
XR Rikenon 1:2 50mm - a sharp lens?
I think there'll be a market for old lenses for a long time to come, but I do agree that bodies are a different matter entirely. :( As for choosing which lens to keep, simply go out with each one for a day (with your K10D) and see which one's results you prefer. Lab charts can be useful in contex...
Posted by hefty1 on 18/05/2009 - 19:19
XR Rikenon 1:2 50mm - a sharp lens?
I came across these test results which look interesting. I'm not sure I fully understand them, but they suggest to me that the Rikenon f2 50mm is at least competitive with the Pentax-M f2 50mm. Regards Andrew They are the PBase tests that J2R linked to above. The Ricoh lenses are as sharp as ...
Posted by shim on 18/05/2009 - 20:14
Sigma 17-70mm Macro
Its a very capable lens, Its on my camera 85% of the time! Take a look at my - The only bad point I have for it is that I wish it was weather sealed like the Pentax 16-50, It also has a 72mm filter thread, so filters tend to be a little more expensive that kitlens filters - the macro feature i...
Posted by isdky on 17/05/2009 - 13:59
Bigma vs Pentax F*300mm f4.5 with 1.7x Tc
The teleconverters work with the Bigma although in manual focus only. These were with the 1.4x @ 700mm
Posted by Mike-P on 18/05/2009 - 18:32
Bigma vs Pentax F*300mm f4.5 with 1.7x Tc
Mike, Quite happy with my Bigma (to a point) after sorting out front/back focus. But still find it a little soft wide open, fine at f10-f16 and thats mounted on a solid tripod/gimbal. Incidental finding the DA 300mm a lot sharper even handheld.
Posted by tomkeet on 18/05/2009 - 21:57
Lenses prices
€930 from www.technikdirekt.de £727.99 from www.warehouseexpress.co.uk Warehouse express are a lot cheaper than SRS then. :roll: Actually I take that back .. what lens are you looking at Peter?
Posted by Mike-P on 19/05/2009 - 17:00
Dumb question of the day
Why do zoom lenses have a petal shaped hood when prime lens hoods are round? The choice between petal and round hoods is not (technicaly) dependant on zoom/prime but is dependant on if the front of the lens rotates duing focusing or zooming. So why doesn't the DA*300 which has a non-rotating ho...
Posted by golfdiesel on 19/05/2009 - 19:11
Dumb question of the day
Now Peter, I thought you were going to absorb some alcohol....OK then, lets see where it leads us. The field of view of the lens is what we want the "film" to receive, and nothing outside of that. So a round hood that is just wide enough for the 24mm side would obscure the 36mm side, so it needs ...
Posted by Mannesty on 19/05/2009 - 21:20
fa lens
The best thing about power-zoom is that, as Iceblinker says, when you switch off the camera, the zoom alters focus to reduce the lens to its shortest length. A nice touch that should work with any SDM-capable body (it certainly works with the K10D, but I can't vouch for the others). G
Posted by George Lazarette on 21/05/2009 - 23:30
50mm Manual lens and focusing Ahhh
Hello everyone.I have a pentax SMC A 50mm 1.7 and just cant get to grips with the manual focusing, Its quite frustrating, as i take maby four or five shots and if i am lucky, 1 will be ok. I am so tempted just to sell the lens and go for the 1.4 auto focus from srs. Please help me or am i doomed for...
Posted by organicimagery on 19/05/2009 - 23:56
50mm Manual lens and focusing Ahhh
Have you tried the "catch in focus" method?
Posted by fatspider on 20/05/2009 - 00:01
50mm Manual lens and focusing Ahhh
Have you tried the "catch in focus" method? Yes, However in low light its a pain , as the flash does not strobe (with auto lens it does) hence not being able to get an acurate focus and the shot coming our horrendusley.
Posted by organicimagery on 20/05/2009 - 00:06
50mm Manual lens and focusing Ahhh
Hi, I use 2 manual lenses exclusively on my K10, the 50mm 1.7 and the 28mm 3.5. With one on the camera and the other in my pocket I find this is all I need. On the subject of low light I think focus will always be an issue with these manual lenses. I do have some success in relatively low light wi...
Posted by DERYN on 20/05/2009 - 08:49
50mm Manual lens and focusing Ahhh
Hello there, Yes have a few auto focus lenses and they do a better job at focusing. I may just sell the lens and get the auto focus 50mm 1.4
Posted by organicimagery on 20/05/2009 - 10:34
