Search results for 'back focus' - page 745
Reverse adapter, macro tubes
A reversing ring screws onto the front of your lens and allows it to be fitted to the camera back-to-front. A different adapter is needed if you want to join two lenses together instead. Extension tubes need K mounts, or K mount adapters. There are manual sets with no electrical contacts, or auto...
Posted by iceblinker on 09/01/2009 - 22:45
Reverse adapter, macro tubes
The M42 to K Mount can be cheap for Macro (who cares about no infinity focus in Macro?) but should be the good one for normal use of your Zenit. Everything else (reversing rings, tubes etc) doesn't matter as long as they're solid and safe connections. Have fun.
Posted by Mac on 10/01/2009 - 11:27
16-50* f2.8 owners
Graham - I've got one and haven't found it anything but a top notch lens. I've not used in wide open as most of my usage is landscape where a long DoF is prefered. I bought mine from SRS mid July. The treads about some forward/back focusing issues had more or less come to a halt by then IIRC bec...
Posted by Steve Chasey on 10/01/2009 - 09:12
16-50* f2.8 owners
Have to agree with the above posts. I bought my K20d with the 16-50, the first few shots i took were dissapointing and not really in focus. Had I read any of the problems at that time I may have sent it back. But it was just me using too slow shutter speeds for hand held shots. This is my most used ...
Posted by SteveT on 11/01/2009 - 14:06
16-50* f2.8 owners
I got a good one first time, well pleased with it. I would avoid the s/h ones though unless you can try them first or they come from a reputable source with a money back gaurantee, its quite possible they are duff ones and the owners cant be arsed getting them swapped for one reason or another. B...
Posted by fatspider on 11/01/2009 - 20:37
16-50* f2.8 owners
I also held back because of the concerns expressed by many of the apparent lack of consistency of performance. Pleased to say I got mine, as a Xmas present, from Park Cameras and it works fine. Brilliant lens and an incentive to get the DA* 50-135. Peter
Posted by petercf on 12/01/2009 - 23:37
16-50* f2.8 owners
I would say it is a good to great lens. What I am not so sure about is the value-for-money. I never had the 16-45, which got a lot of praise, not only in this forum. I had the old kit lens from the *istD (18-35/4-5.6) and that certainly is no contender for the 16-50. So the 16-45 might be better val...
Posted by Prieni on 16/01/2009 - 09:00
16-50* f2.8 owners
... In summary I am finding that from F2.8 to F4.5/F5.6 the image is soft with some CA noticeable towards the edges. As soon as you hit F6.7 things spring into high definition! ... Assuming that this was using auto focus I suspect that your DA*16-55 is suffering from a little front, or possibly bac...
Posted by GlynM on 16/01/2009 - 09:17
16-50* f2.8 owners
What does Chris@SRS do with all these returned lenses that disappointed their proud owners the first time around? Obviously he must be sending them back to Pentax with a note to say it was only 98% not 100%. Then what do Pentax do with them? Obviously they must 'refurbish' them and sell them ...
Posted by Coriander on 28/01/2009 - 09:32
16-50* f2.8 owners
The chromatic aberrations can be corrected fairly easily as can the purple fringing. I have a pre-set in Lightroom to remove it for me. The purple fringing produced by the 16-50 is actually a side effect of the CAs not proper PF which is why it is easy to remove. I have had two DA*16-50s, the fir...
Posted by Tyr on 31/01/2009 - 15:39
End of Cashback imminent, what to buy ?
I have the K20d 10-17 18-55 & Tamron 70-300. I'm looking to add a few lenses in the next few weeks. I'm torn on which direction to take. I probably wont replace the telephoto for now as I've seldom reached for it (In fact it's only getting some use indoors now it's raining as I don't have a proper 1...
Posted by RR on 14/01/2009 - 13:39
End of Cashback imminent, what to buy ?
The DA 10-17 is not a standard lens - it produces unique images which can be either brilliant or total pants. It takes some skill and a lot of vision to get the best out of it and whilst a good few of us have it, it's not used that much (see how many competion entries it's featured in). The DA 12-2...
Posted by Steve Chasey on 14/01/2009 - 16:38
End of Cashback imminent, what to buy ?
I have the Sigma 10-20 and enjoy it but at 20 it's a bit short so I'd expect the 12-24 would be the more useful lens. I had a hard time getting the 10-20 off the body for a long it just kept on creeping back on and if I had the 24mm it would probably be there most of the time. Mike
Posted by mikew on 14/01/2009 - 17:48
End of Cashback imminent, what to buy ?
Well I bought the 12-24 today for a very nice price of £410 - Now to claim another £50 back from Pentax.
Posted by RR on 22/01/2009 - 16:39
DECENT A/F TELEZOOM WANTED
I have a slightly older version of the current 70-300 Sigma APO which I got when the Pentax was new out and priced a bit higher. I had tried out the tamron and although sharp the PF was too annoying for me. I haven't tried the Pentax but from what I've seen it seems to be very impressive, especially...
Posted by RichardC on 17/01/2009 - 09:37
DECENT A/F TELEZOOM WANTED
Well, I`ve done it now, and ordered the Pentax 55-300 from SRS - expected tomorrow. Naturally, I`m keen to see how the images compare with those taken on my old manual-focus zooms - Tokina 80-200 mm f2.8 and Ricoh 300 mm APO f4.5.
Posted by Braunton on 19/01/2009 - 12:40
SMC Takumar 135mm problem
Kris, Just curious, I have two M42 135mm primes - both Super Takumar's. One I use for Macro work, the 1:3.5, the other for portarait work, the 1:2.5. They are both wonderful, but I LOVE the 2.5. They are constructed very differently. This is most obvious when you watch the rear elements whi...
Posted by Mac on 15/01/2009 - 13:54
Sigma 18 -125mm f3.8-5.6 DC anyone ?
FWIW, the Pentax SMC-DA 17-70 is just superb ;) Incredibly sharp, stunning bokeh and very, very contrasty. Focus is also exceedingly quiet with the SDM focus motor :D (Still a £50 cash back if you hurry!!) Matt
Posted by MattMatic on 15/01/2009 - 19:06
Pentax version of the Tokina 11-16 ...WHEN IS IT HAPPENING?
There is a possibility that we may make PMA in Vegas this year as we are on honeymoon, Good luck to you both. I hope you realize that photography is going to take a back seat to the reality of married life!:shock:
Posted by pentaxian450 on 17/01/2009 - 12:51
Pentax version of the Tokina 11-16 ...WHEN IS IT HAPPENING?
Good luck to you both. Thanks Yves! I hope you realize that photography is going to take a back seat to the reality of married life!:shock: I bloody hope not!:D
Posted by Unlocker on 17/01/2009 - 21:21
