Search results for 'back focus' - page 794
Is the Da 50-200mm zoom lens any good?
Can't say I have any issues with the focus speed but then I try not to be in a rush. If I think I'm shooting candids I'll pre focus as best I can. It's a pity you didn't get one when Jessops were doing them at rock bottom prices like £29. Mike
Posted by mikew on 09/07/2009 - 20:02
smc-DA 18-250mm/3.5~6.3 ED AL [IF] ??
I'm going back to Scotland on Sunday for three days and will be taking the 18-250 and my Sigma 10-20, oh! and a k20. :lol:
Posted by jackitec on 08/07/2009 - 17:57
smc-DA 18-250mm/3.5~6.3 ED AL [IF] ??
Just to add another point to JonShick's pretty definitive list above - As a cosmetic re-work of a Tamron this lens does not have quick-shift focus which I find really useful on other Pentax DA lenses. Glyn
Posted by GlynM on 08/07/2009 - 23:14
A Long Lens
Anybody got one of these, they come from an EBay'er based in Glasgow and I'm going back for 3 days on Sunday and just wondered if there any good,
Posted by jackitec on 08/07/2009 - 20:52
A Long Lens
Anybody got one of these, they come from an EBay'er based in Glasgow and I'm going back for 3 days on Sunday and just wondered if there any good, A friend of mine has one of these and reckons its superb.He uses it with a D200 and it's a t-mount so i assume all the lenses would be the same quali...
Posted by sanderscapes on 08/07/2009 - 21:55
Need immediate help please
Good choice, all you need now is an adaptor. The one Polchraine suggests is best, it allows focus to infinity.8)
Posted by Hardgravity on 09/07/2009 - 13:22
Need immediate help please
Is it possible that some adapter rings don't support infinity focus? Damn, here in Sweden that adaptor is REALLY expencive, but found pirate ones for 1/8 of the price. Need to do some research, and thats quick, only have 1 week on me before I leave for Croatia.
Posted by Draken on 09/07/2009 - 13:33
Need immediate help please
I would think all M42 to K adapters support infinity focus. With the Pentax original the adapter is flush with the body when it's put in on it's own. As long as it doesn't stick out from the body it should be OK. The Pentax one is a perfect fit not sure about 3rd party ones. Ask SRS to send yo...
Posted by shim on 09/07/2009 - 13:41
Need immediate help please
Not all the M42 adapters allow infinity focus, so the original Pentax one is the best option, for all the reasons stated.
Posted by johnriley on 09/07/2009 - 15:53
Need immediate help please
I've been using a half dozen Roxsen M42 adapters for several years. They allow infinity focus. The first thing I did was Locktite the screw that holds the spring. I realise most folks won't have the stuff around. But a lot of auto garages and machine shops do. I doubt they'd charge much for a drop ...
Posted by greyhoundman on 09/07/2009 - 16:23
Need immediate help please
Yes Chris is a member. As for cheap adaptors, some have a flange on that stops the lens sitting flush on the camera mount, result, loss of infinity focus. I have one which I use for a CZJ 35mm for close up stuff, totally useless beyond 3 metres.8)
Posted by Hardgravity on 09/07/2009 - 18:17
Need immediate help please
I would think all M42 to K adapters support infinity focus. shim No. There are a lot of adapters from the Far East which have a flange that sits between the lens and the camera, thus preventing infinity focus and (on the positive side) allowing you to focus closer. A proper adapter has no fla...
Posted by George Lazarette on 09/07/2009 - 23:21
Need immediate help please
Is this the place to ask about lenses? My K200D is supposed to be compatible with the old lenses I used on my SLRs. So I must be doing something wrong, because I can't make the camera take a picture, when I have a manual focus lens on it. Is there something I have to set on the camera? I s...
Posted by Nodule on 14/07/2009 - 19:07
Help to remove a mount.
The locking pin needs to move back into the body of the tubes to allow the lens to be rotated and removed so you'll need to move/push/press/turn a lever/button to achieve that.
Posted by Mannesty on 09/07/2009 - 16:58
MIssing items
Having developed an excellent range of lenses over the last few years, when is Pentax going to produce necessary lens accessories, i.e. 1.4x/2x converters and extension tubes that work with their lenses, especially those with the SDM focus, such as the 300 DA*? These items are not available from ...
Posted by brownargus on 10/07/2009 - 16:17
MIssing items
Ditto! Pentax need to release the SDM 1.4TC that was announced way back when at the same time as the 60-250 & 55.
Posted by Snootchies on 10/07/2009 - 16:37
MIssing items
Plenty of others here seem to use TCs without any problems. I agree it would be great if Pentax were to put the 1.4 SDM TC back in the scheme of things, sooner rather than later too.
Posted by Gwyn on 11/07/2009 - 21:36
MIssing items
We seem to have wandered way off the thread of when is Pentax going to produce a converter or extension tubes to work with their lenses. I believe they said that when the new lens road map came with out the 1.4x SDM TC that the items were placed to a later date to make way for other releases. The K...
Posted by Anvh on 15/07/2009 - 16:11
MIssing items
Ah, thank you George, back on track, teleconverters, interesting link.
Posted by Rees on 16/07/2009 - 09:01
The Sigma 17-70 vs Pentax DA 17-70 debate (again - sorry)
Interesting to hear - I guess if the prices are close then the Pentax is definitely worth getting, but with the current increasing gap the Sigma looks like one of the better reasonably priced standard zooms to get for PK fit. Eduardo - I have the Sigma and like it very much - I'm sure you'll be hap...
Posted by JonSchick on 10/07/2009 - 18:30
