Search results for 'back focus' - page 1166
DAL 16-85 WR
Not every 16-50 has problems. My 50-135 packed it in after 6 ½ years, but the 16-50 bought a week earlier is still chugging along. I like the f/2.8 all the way. On the K10 it was not the best for large prints, but on my new-to-me K3 it is hard to fault -- and focuses faster, too. It's still not a fa...
Posted by Canada_Rockies on 07/12/2015 - 04:35
New! Pentax HD D-FA 24-70mm F2.8 SDM WR
Hmmm, I see Ricoh are sticking with SDM and it's not * designated either ... will be interesting to see how the focus speed compares with the other lenses. I'm torn between waiting to see how this performs or using the 10% voucher that has just sent to me and snapping up one of the Sigma 24-70mm ...
Posted by Mike-P on 25/09/2015 - 08:28
New! Pentax HD D-FA 24-70mm F2.8 SDM WR
Is there any news on whether it has quick shift focus?
Posted by Cayman on 25/09/2015 - 20:01
Compatible k-mount lenses
You can search online ... Try this ... 'Pentax K Mount Lens Reviews and Database'. That should lead you to a compete resource including third party options. Samyang make Full Frame compatible modern K mount lenses with manual focus. Sigma and Tamron are the main modern options for autofocus. Goi...
Posted by McGregNi on 26/09/2015 - 12:03
Sharpest fast 17mm lens?
Hi My Tamron 17-50 f2.8 lens is struggling these days, at 17mm won't focus automatically. I'm planning on replacing it but would like to know which lens (17mm or thereabouts shortest focal length to 50mm or thereabouts ) would be the sharpest wide open/at f2.8? Many reviews say x lens is soft...
Posted by dinneenp on 04/10/2015 - 14:29
Sharpest fast 17mm lens?
Hi My Tamron 17-50 f2.8 lens is struggling these days, at 17mm won't focus automatically. I'm planning on replacing it but would like to know which lens (17mm or thereabouts shortest focal length to 50mm or thereabouts ) would be the sharpest wide open/at f2.8? Many reviews say x lens is soft...
Posted by MrCynical on 07/10/2015 - 02:27
Lenses, lenses- what makes a lens special (I don't get it)
There are many factors that are not so easily quantified. Yes, different lenses can give different colours, there is also the bokeh (rendering of out of focus highlights NOT as some seem to thingk just DOF), and even just the feel of the lens. Some have (mainly AF lenses) very short focus throws, o...
Posted by petrochemist on 06/10/2015 - 11:19
Lenses, lenses- what makes a lens special (I don't get it)
I have some soft spots for a few lenses: FA* 24mm f2 - Wonderful build and lovely to use. Sharp in the centre wide open but also has a nice 3D quality that's helped with the fast aperture/shallow DOF. Also MUCH lower CA/PF than the FA20-35. Voigtlander 58mm f1.4 Nokton / 90mm f3.5 APO - Both l...
Posted by hoopsontoast on 06/10/2015 - 15:30
Lenses, lenses- what makes a lens special (I don't get it)
I dislike zooms, I use them on occasion of course for convenience, but they cloud my judgement and have too many compromises to excite me. I shoot more film (manual focus bodies) than digital, I prefer manual focus prime lenses - the focus rings are better damped - although the FA primes are pretty ...
Posted by johnha on 07/10/2015 - 00:20
Lenses, lenses- what makes a lens special (I don't get it)
For me it's a combo of a useful focal length, and a lack of purple fringing/CA mostly. I was something that's sharp but also has good contrast. Fixed focal length lenses can be difficult to work with where you can't control the surroundings. Very often they're too narrow for the surroundings,...
Posted by richandfleur on 08/10/2015 - 00:02
Lenses, lenses- what makes a lens special (I don't get it)
Since I got the DA* 16-50 back from repair (SDM! But hopefully that is now finally put to bed) I have been reviewing how effective it is. Very, very good. Along with the DA* 50-135 it gives really nice (to my eyes) sharp, well defined and colour accurate images that most of the time only need minima...
Posted by Jetsam1 on 08/10/2015 - 04:42
Which weathersealed lens for my K50?
Hi Folks, I've just picked up a K50, finally allowing me to properly upgrade but I'm lacking on weathersealed lenses, but hopefully will be able to pick one up soon, just not sure which one. I currently cover 18-55 and 50-300 with my zooms which are a standard non WR Pentax Kit and a Tamron zo...
Posted by KatierRax on 07/10/2015 - 20:01
Which weathersealed lens for my K50?
Surprised anyone would even buy a 18-55 kit lens, ironically I have two, the first came with my old K200, and the other with my second camera, a K100D. I've used the Tamron before with the K200 (it was stolen) so bought another because it was a lens I felt comfortable with. Selling the 18-55's, ...
Posted by KatierRax on 07/10/2015 - 23:44
18-55 Lens question
Ok, so Im in the position where I have two 18-55 lenses, only one of which I want to keep. 1) DA L 18-55 AL WR 2) Sansung D Xenon 18-55 (basically the Pentax DA 18-55 AL II) So my question is, which one do I keep? I suppose the optics are pretty much identical, so its down to the contruction ...
Posted by bigyinn on 14/10/2015 - 08:34
Cheap 70-300mm lenses.
Just to let everyone know that after further thought, some hours ruining my eye-sight gazing at sample images on the 'net and a quick look at the state of my credit cards, I ordered the non-APO Sigma DG Macro from SRS. The converter idea got rejected as it would lose a stop with the Pentax 50-200, w...
Posted by Aitch53 on 23/10/2015 - 17:39
Sigma 18-35mm f1.8 DC HSM Lens
I have been looking at some reviews recently on this lens all really rate it. Does any forum member have a copy and if so could you give me a little feed back. Regards Ian
Posted by philstaff on 21/10/2015 - 14:57
Sigma 18-35mm f1.8 DC HSM Lens
It is an excellent lens and I use it a lot for events and parties. Some complain about the size and weight but it feels about the same as a 16-50 on the camera, so not bad at all. The other frequent complaint is that the Pentax version does not focus well. My copy performs very well on my K5ii but o...
Posted by smudge on 21/10/2015 - 18:13
Sigma 18-35mm f1.8 DC HSM Lens
There are reports of focussing problems on other mounts as well as Pentax :shock: It's not a problem for Pentax users they don't buy lenses to take photographs :lol: See..... http://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/277499-sigma-18-35-f-1-8-art-focus-issues-thread.ht...
Posted by Algernon on 21/10/2015 - 18:27
Sigma 18-35mm f1.8 DC HSM Lens
Thanks for the feed back all. I have not seen any issues with focusing on the video reviews. However I will dig into the issue and see if I can find out more. Regards Ian
Posted by philstaff on 21/10/2015 - 20:26
Sigma 18-35mm f1.8 DC HSM Lens
I own the Sigma 18-35mm (constant aperture) f 1.8 One of my most frequently used lenses, and never have experienced one single issue with it. Out of every currently lens for sale in PK it's one of the fastest focusing, and also most accurate focusing. The only single (pk) lens that focuses faster...
Posted by 50mpCMOS on 21/10/2015 - 23:00
