Search results for 'back focus' - page 660
SMC M 50mm 1:2 K Mount Lens
Hi Mac, and you're very welcome.. my eyes have recovered somewhat now.. :lol: For some reason (blind as a bat) :shock: , I seem to struggle a bit with this lens, but the results are worth it. I don't get the same problem with my 70-210 soligor f3.5 (constant) macro, and can focus on indivi...
Posted by LiamD on 31/12/2006 - 00:36
Pentax 50-200DA zoom - £122 Tecno
I took delivery of the 50-200 today. But on inspection I thought the front element of the lens stood proud of the printed surround. I could rub my finger along the edge of the glass which was rough in some parts. I got out my 18-55 to compare. And indeed on the 18-55 the glass is totally housed at ...
Posted by overbeyond on 08/01/2007 - 20:06
Lenses for K10D
Hi Paul (I assume your name is Paul) Envy you the clear weather, but today there is the possibility of some sun - the cloud though is that uniform grey which ruins the light for landscapes. The Sigma 17-70 has so far not disappointed. Have been taking close ups of snowdrops, camellias etc. Qui...
Posted by Snadalholme on 17/02/2007 - 08:20
New Lens Info!!
I'm saving up for the 16-50. I already have good longish glass in the shape of the FA 200 2.8 and F 300 4.5, and I don't imagine that the new versions will be significantly better optically, if at all. It's the wide lenses that benefit most from "digital" tweaking, and which can be made ...
Posted by George Lazarette on 11/01/2007 - 13:17
New Lens Info!!
any news on how many and which of these lenses will have the new focus motors? I suspect they wont all have them right away, since focus motor equipped lenses are unlikely to AF on the K100D and earlier cameras and that will seriously limit sales and seriously P*** off a lot of people who recentl...
Posted by Mongoose on 11/01/2007 - 13:21
New Lens Info!!
Coming back to this, I predict that sonic motors will only appear in the new * lenses and long D-FA lenses, and I think it is unlikely that they will be compatible with older cameras. So the new lens line up will fall into three categories, as it always used to. Cheap "consumer" zoom...
Posted by George Lazarette on 12/01/2007 - 09:25
New Lens Info!!
But... They are listed as D-FA which means I think they are backward compatible with the film cameras. Which means mechanical AF. Perhaps even a switch on the lens to switch between the two modes (withdraw mechanical link - engage AF motor...) Should have an aperture ring too... I can't really se...
Posted by George Lazarette on 12/01/2007 - 09:36
New Lens Info!!
I can't really see the point in an AF lens with an aperture ring. They aren't needed on any AF body, and why would one pay for an AF lens at all if one is using a very old film camera with manual focus? After all, there are second hand MF lenses available. G The MZ-S and MZ5n require an apertur...
Posted by nclark on 12/01/2007 - 12:38
New Lens Info!!
Surely the new sonic motor lenses will HAVE to include the option of an AF coupling, otherwise they will be useless on all but the K10D? (unless you want to focus manually) Furthermore, are these new lenses also to have power zoom function?, it seems odd that Pentax would make the K10D KAF2 compata...
Posted by fatspider on 12/01/2007 - 14:27
New Lens Info!!
Back again. Just had a look at Dimtrovs website, I didnt realise but the K100D and K110D also have the KAF2 mount, but Dimitrov states they will NOT support sonic motor lenses, there must be more to it than just using the power zoom contacts, which is a shame, I could have sold my MZ5n as sonic m...
Posted by fatspider on 12/01/2007 - 18:49
New Lens Info!!
Surely the new sonic motor lenses will HAVE to include the option of an AF coupling, otherwise they will be useless on all but the K10D? (unless you want to focus manually) Furthermore, are these new lenses also to have power zoom function?, it seems odd that Pentax would make the K10D KAF2 compata...
Posted by Mongoose on 12/01/2007 - 16:01
New Lens Info!!
I can't really see the point in an AF lens with an aperture ring. They aren't needed on any AF body, and why would one pay for an AF lens at all if one is using a very old film camera with manual focus? After all, there are second hand MF lenses available. G A lens without an aperture ring, * or ...
Posted by Mannesty on 12/01/2007 - 18:13
New Lens Info!!
I wonder about that too ;) I suspect that they're doing power-assisted focus - probably mechanically linked. Maybe they will work... just have to wait and see :P Matt
Posted by MattMatic on 12/01/2007 - 18:26
New Lens Info!!
If those contacts do power both PF and the new sonic motors does this mean any KAF2 mount body could use the motor driven lenses? I don't think so. Earlier cameras will have no way to transmit the instructions to the lens on how to focus. G
Posted by George Lazarette on 12/01/2007 - 19:47
New Lens Info!!
Back again. Just had a look at Dimtrovs website, I didnt realise but the K100D and K110D also have the KAF2 mount, but Dimitrov states they will NOT support sonic motor lenses, there must be more to it than just using the power zoom contacts, which is a shame, I could have sold my MZ5n as sonic m...
Posted by George Lazarette on 12/01/2007 - 19:49
New Lens Info!!
Yes, a few photographers are still using film, and a few are still using old manual focus bodies. But they do not constitiute a big enough market to warrant building extra complexity into sophisticated new lenses. That would just push the cost up more, and encourage people to buy third party lense...
Posted by George Lazarette on 13/01/2007 - 12:01
New Lens Info!!
I agree from Pentax's point of view it would make little sense to make backwards compatibility with old film cameras a priority when they need to get people other than existing Pentax users to buy into their system. I know I'd rather have to have separate lenses for my film and digital SLRs than see...
Posted by ZaphodB on 24/01/2007 - 23:44
Clean sensor
I remember having all sorts of issues with my *ist-D which I'd bought from SRS as one of their "A-Grade"... It ended up going backwards and forwards to Pentax UK to be cleaned 3 times before it was sorted. There were some 'orrible grubby marks on it :shock: Since then I've cleaned it ...
Posted by spirit_of_will on 12/01/2007 - 22:40
Clean sensor
I have seen a Sigma 18-200 when I have done a search through google and a Sigma 18-125. Can you please advice as to their relative merits. Thanks for your patience. :oops: Howard Yeah I bought a used Sigma 18-125 and like it a fair bit. I made comparison shots between the lower end of the 18-1...
Posted by philmerrin on 27/01/2007 - 05:23
Sigma strikes again.
From the PDML: > Finally got My K10D today YAH!!!!!!!!!!!! > > but my Sigma 24-70 zoom won't work with it. Won't auto focus, won't auto > anything, > Yet same lens works perfictaly on my MZ7. G
Posted by George Lazarette on 12/01/2007 - 00:37
