Search results for 'back focus' - page 974
Kit list for Western USA trip?
Thanks for the suggestions.:D I think I'll end taking the DA 17-70, a DA 55-300 and either the Sigma 10-20 or DA 12-24. I'll probably also take the WR kit lens for when I'm mountain biking and just want to carry as light a camera as possible. I've got to the end of August to finalise things, so I'...
Posted by MarkTheSpark on 22/06/2011 - 18:07
Pentax DA 18-135
Bought a FA-35/2 a few years back from B&H and saved quite a bit even after paying taxes, import duty etc. John
Posted by johnwhit on 21/06/2011 - 15:22
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
The 50-135 is too short. I took mine back to the UK last Xmas and brought a 70-200mm back to Oz. I even consider my 50-135 too short for street work. A 70-200mm f/2.8 with a matched 1.4TC is a killer combo. Best regards
Posted by K10D on 20/06/2011 - 13:14
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
70-200mm f2.8 Pentax 50-135mm is positively glacial in its focus speed. If you prefer this length then look at the Sigma 50-150mm f2.8 (if you can find one).
Posted by Mike-P on 20/06/2011 - 14:56
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
I'm used to shooting with manual focus lenses, so AF speed shouldn't be too much of a problem. I did see the Tamron was sharper than the Sigma but it seems to be in short supply at the moment? Whatever I buy will get its first proper outing in a couple of weeks at Goodwood FoS. I notice SRS have ...
Posted by Dangermouse on 20/06/2011 - 14:58
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
Just a couple of points worth throwing into the mix about the DA*50-135 :) 1. Weather sealed. It's great using this in torrential rain, snow, etc :P 2. Very good manual focus. I know this isn't a substitute for fast AF, etc, but the ability to instantly switch to MF and override is great, and ...
Posted by MattMatic on 20/06/2011 - 15:00
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
Pentax 50-135mm is positively glacial in its focus speed. If you prefer this length then look at the Sigma 50-150mm f2.8 (if you can find one). I thought the 50-135 focusing speed was much improved on the K5, Mike? the ability to instantly switch to MF and override is great, and MF is a breeze wi...
Posted by Dr. Mhuni on 20/06/2011 - 15:15
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
I'm not sure. In my experience I get faster AF the larger the aperture. On the 35/2.4 it's very quick, with the 100-300mm it's prone to hunting at the long end and with a 150-500mm Bigma I borrow occasionally it fails to lock focus most of the time. It seems that f2.8 or faster produces much better ...
Posted by Dangermouse on 20/06/2011 - 15:32
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
Pentax 50-135mm is positively glacial in its focus speed. If you prefer this length then look at the Sigma 50-150mm f2.8 (if you can find one). I thought the 50-135 focusing speed was much improved on the K5, Mike? It's a bit faster on the K5 then on the K10D, it's much more snappy happy but still n...
Posted by Anvh on 20/06/2011 - 15:46
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
They have updated the SDM in the DA*16-50 and the DA*50-135 a bit more then a year ago, hopefully that helps... Really ? Don't remember any announcement .. just a lot of conjecture ;) Benjamin Kanarek wrote on his blog that he had send his lenses back to France for a SDM update. Can't find the entr...
Posted by Anvh on 20/06/2011 - 19:56
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
£70 not too bad I was thinking twice that, my DA*200 expired a few months back:lol: I know it doesn't happen to the DA*200's:roll: Who repaired it if you don't mind me asking. John
Posted by johnwhit on 20/06/2011 - 20:23
Pentax DA* 50-135mm or Sigma/Tamron 70-200mm f2.8?
So, reading that, it seems that the motor just jams. A brave owner could try applying a slightly higher voltage to get it turning again. We need a tame Pentax technician to tell us what contacts to short circuit. G PS: Glad it worked for you, John. A business opportunity perhaps? Thanks G...
Posted by johnwhit on 21/06/2011 - 12:37
Macro lens (WHICH ONE )
Happily, there is virtually no such thing as a bad macro lens. For insects, the longer the lens the better. Short macros are best for things like documents. Many people prefer to focus manually, so don't pay a large premium for AF. Likewise for exposure. An old SMC Pentax-M 1:4 100mm, c...
Posted by George Lazarette on 21/06/2011 - 12:02
Macro lens (WHICH ONE )
Anything labeled MACRO-ZOOM isn't macro. Except the Schneider Betavaron enlarger zoom, but that's not really relevant here. Modern AF macro lenses like those mentioned are excellent tools but rather overkill for macro work. AF is NOT your friend when working at 1:1 magnification. Those with A-type c...
Posted by RioRico on 29/06/2011 - 00:04
Macro lens (WHICH ONE )
Macro is area where with a bit of patience you can achieve excellent results for very little. Indeed. Basic macro kit: mount-reversal ring (US$5) and cheap PK macro tubes (US$10), applied to a Fifty. You can even get good results just reversing a prime either directly on the body or in front of a...
Posted by RioRico on 30/06/2011 - 21:14
WTB DA* 16-50mm
Hmm. The problem with tests is that they tend to over-emphasise perceived failings which in reality are often not a problem. The resolution of the 16-50 is very good in real-life situations, and when I had one I never once had cause to complain about image quality. Back-focussing can now be...
Posted by George Lazarette on 21/06/2011 - 17:14
WTB DA* 16-50mm
George I think you make a valid point at least in terms of real world experience being important. I'm assuming anybody commenting on the lens in the first person has some experience of it. It is a little disconcerting to spend £600+ without being sure.. It seems the 50-135 gets almost universal p...
Posted by japers45 on 21/06/2011 - 19:29
WTB DA* 16-50mm
Ok George. I seen many videos on youtube shows how water proof the pentax body and DA* lens are so I though I give it a go. And it failed after 30 mins. So I do not see pentax products as WR anymore. Now I will just take care of my gears better. Going back to the IQ, yes the pentax is a good ...
Posted by m42geo on 21/06/2011 - 20:22
WTB DA* 16-50mm
Ok George. Going back to the IQ, yes the pentax is a good lens in most field conditions and if you think the price is fair then maybe we should put it this way the Tamron offer is a bargain. Please let me point out, I do not mean to piss anyone off who own a DA*16-50 and I just want to point ou...
Posted by George Lazarette on 21/06/2011 - 21:12
WTB DA* 16-50mm
Ok have been following all the posts and would like to provide some real life info on the DA* 16mm to 50mm that may provide some real balance. I was in Duluth Minnesota in December 2009 and it was -30 we were waiting for a place to open to get some breakfast. I stepped out of the heated Jeep and ...
Posted by Fletcher8 on 21/06/2011 - 21:34
