Search results for 'back focus' - page 1201
55-300 PLM
I've owned three variants, smc da, hd & plm. Although I do believe there's a marginal optical improvement as they progressed, it's not massive. The focus on the plm is a vast improvement and virtually silent, although occasionally it still does hunt, it's far less annoying. The girth on the plm is t...
Posted by Defragged on 25/06/2018 - 11:51
55-300 PLM
Following on from, my earlier comments about the PLM v earlier versions: Ref Bill's comment about K-3 II f/w, I swapped the the PLM and the 100-300 F4 Sigma between my K3-II and K-3 quite a few times at that airshow, and the PLM "issue" "followed the lens" and showed up on each body, whereas the S...
Posted by jeallen01 on 25/06/2018 - 12:10
55-300 PLM
The only problems I've seen so far in limited usage of the PLM is that, on the K-3 or K-3 II at an airshow, when it lost focus lock it just went "haywire" and focused "anywhere" - whereas the Sigma 100-300 F4 on "the other body at the same time" fairly quickly re-established focus. Won't be an issue...
Posted by Defragged on 25/06/2018 - 12:29
55-300 PLM
I had the screw drive lens back on my K5. I had the 300mm star F4 and tele adapter and now a K3II and the 55 - 300mm PLM. The first used to hunt noisily, might have been the camera. The star lens was great BUT focused slowly and too heavy/bulky for my travels.The tele adapter made focus too cr...
Posted by Defragged on 25/06/2018 - 12:48
55-300 PLM
I think the main problem with focusing is that this one (PLM) is really finicky about the accuracy of where you are pointing it. I used to swear considerably at it until I realized this. If you are trying to catch a moving object the problem is multiplied. It didn't help that my copy was back focusi...
Posted by davidwozhere on 28/06/2018 - 01:06
New DFA 50mm f1.4
If the spec above is correct it's a ridiculous lens (no wonder it's taken so long to develop it). Standard primes are supposed to be most useful by being small & lightweight. If I were Zeiss, I'd put the ZK lenses back into production pronto! At least there's no danger of the F & FA 50s losing va...
Posted by johnha on 27/06/2018 - 01:49
New DFA 50mm f1.4
Back in the good old days 50mm primes were the workhorses of a photog's kit because zooms just didn't cut it optically by comparison. Today a 24-70 zoom produces great results so the need for a "standard" prime is almost non-existent. Pentax have done the right thing here I think. They have inves...
Posted by pschlute on 27/06/2018 - 17:01
New DFA 50mm f1.4
Did anyone else try one out at TPS? Hard to test in such an environment but the focus was very quick and quiet, and maybe because I am used to the 24-70mm it didn’t feel especially heavy. With the K1 and mark II it should be exceptionally good in lower light levels where you would use a tripod anywa...
Posted by RobL on 27/06/2018 - 17:58
New DFA 50mm f1.4
Back in the good old days 50mm primes were the workhorses of a photog's kit because zooms just didn't cut it optically by comparison. Today a 24-70 zoom produces great results so the need for a "standard" prime is almost non-existent. Very good point.
Posted by 1stEverPentax on 27/06/2018 - 19:00
New DFA 50mm f1.4
Back in the good old days 50mm primes were the workhorses of a photog's kit because zooms just didn't cut it optically by comparison. Today a 24-70 zoom produces great results so the need for a "standard" prime is almost non-existent. Very good point. True - but the ultra-thin depth of field tha...
Posted by LennyBloke on 27/06/2018 - 22:06
New DFA 50mm f1.4
[quote:3496ace15f="pschlute"]Back in the good old days 50mm primes were the workhorses of a photog's kit because zooms just didn't cut it optically by comparison. Today a 24-70 zoom produces great results so the need for a "standard" prime is almost non-existent. Very good point. True - but the ...
Posted by pschlute on 27/06/2018 - 23:34
New DFA 50mm f1.4
Some more sample full size images...... http://www.ricoh-imaging.co.jp/english/products/lens/k/standard/hdpentax-dfa-50/ -- There is a new lens roadmap at the bottom of the page, looks like the DA* 11-18 f/2.8 has been put back to at least 2019.
Posted by Mike-P on 29/06/2018 - 15:52
New DFA 50mm f1.4
What is manual focus like on this beast ? Since Pentax PDAF sensors are f2.8ish on a good day, no matter how quiet and powerful etc the focus motors are, surely it won't auto focus well at f1.4 on any existing Pentax body ?
Posted by kh1234567890 on 30/06/2018 - 09:49
New DFA 50mm f1.4
What is manual focus like on this beast ? Since Pentax PDAF sensors are f2.8ish on a good day, no matter how quiet and powerful etc the focus motors are, surely it won't auto focus well at f1.4 on any existing Pentax body ? Don't know until we get our hands on one :D It has a large focus ring ...
Posted by pschlute on 30/06/2018 - 10:23
New DFA 50mm f1.4
Looks an awesome lens. From what I've seen it looks to have nice bokeh in front and behind the lens which isn't always the case and some lenses such as the Leica C Summicron 40mm have very good bokeh in front, but poor at the back. Amazon UK are listing one available from GWC who also list it as ...
Posted by Algernon on 31/07/2018 - 19:30
New DFA 50mm f1.4
I'm seriously impressed with the performance of this lens. Really seems like you can just turn up and take a shot, and providing it the focus is good you'll have a great sharp image at any aperture setting. I (and most of us) would be used to stopping down to get impressive sharpness so this is a...
Posted by HarisF1 on 31/07/2018 - 23:09
New DFA 50mm f1.4
Lenses do have a character that goes beyond test measurements. I'll be very interested to see how this new lens behaves. It hasn't arrived yet but I expect it will do in the near future. Very much agree John. The 3D pop of the FA Ltds, especially the way the 31mm Ltd transitions from in-focus to out...
Posted by pschlute on 01/08/2018 - 00:17
On no, I've been converted!
So I used to be an almost exclusively zoom lens user. For a long time I have had the DA*16-50 and DA*50-135 as my two go everywhere lenses. I also have a DA18-135 but it is on 'long-term' (permanent :lol:) loan to my father. For a long time I'd been umming and arring about the Limited primes. Every ...
Posted by Tyr on 29/06/2018 - 22:26
Sigma 50-150mm f2.8 mk2 APO HSM
Because Sigma back engineered the PKA mount they gave quite a few lenses the same code which can be a right pain at times, especially if you need to do any lens focus adjustment in camera. If you use Windows try right clicking on the edited Jpeg (if you shoot RAW) and go into details, scroll down...
Posted by Mike-P on 03/07/2018 - 23:49
A sad day...........
Ah but by the time I am in command of the technical aspects and have the time to sit down with it and find the K200 I am going to need a normal view lens. I was always going to keep the 16-50 regardless and see later when I had more time what could be done with it. It's a lesson for having a back...
Posted by Jetsam1 on 04/07/2018 - 18:56
