Search results for 'back focus' - page 1105
No Sigma USB Dock for Pentax???
It's hard enough adjusting one lens at one focal length and one position :shock: You would have to be a masochist to want to adjust a zoom at four FL's and four distances at each one :shock: The simple solution is stay clear of Sigma or any other lens that hasn't been designed properly. I'v...
Posted by Smeggypants on 12/09/2013 - 21:57
No Sigma USB Dock for Pentax???
Another point about the Sigma USB Dock is that you have to remove the lens from the camera and move it to the Dock after each adjustment then back again. You might also have to move your SD Card over to the PC... I use an Eye-Fi Card so I don't need to do that. Even when you set some Sigmas,...
Posted by Algernon on 13/09/2013 - 07:48
No Sigma USB Dock for Pentax???
If you use the excellent ExifTool software on an image taken with a Pentax DSLR, you will see that there is the focal distance (the value seen on the lens is in three positions in the EXIF data, plus the SRFocalDistance which is the value needed by the Shake Reduction to take into account the reduct...
Posted by Ptitboul on 13/09/2013 - 18:39
No Sigma USB Dock for Pentax???
If you use the excellent ExifTool software on an image taken with a Pentax DSLR, you will see that there is the focal distance (the value seen on the lens is in three positions in the EXIF data, plus the SRFocalDistance which is the value needed by the Shake Reduction to take into account the reduct...
Posted by Algernon on 14/09/2013 - 10:15
No Sigma USB Dock for Pentax???
They should put it in the Olympics :lol: They could also have Houghton le Spring, Northumberland rules. To get back on subject what is a usb block for sigma ?
Posted by tyronet2000 on 15/09/2013 - 19:49
No Sigma USB Dock for Pentax???
Do you mean USB Dock? It's just a docking station for the lens so that you can carry out the micro-focus adjustment about 16 times :shock: Something to do during the dark cold winter months that lie ahead :mrgreen: http://www.lensrentals.com/blog/2013/06/sigma-optimization-pro-and-usb-dock ...
Posted by Algernon on 15/09/2013 - 20:25
No Sigma USB Dock for Pentax???
Do you mean USB Dock? It's just a docking station for the lens so that you can carry out the micro-focus adjustment about 16 times :shock: Something to do during the dark cold winter months that lie ahead :mrgreen: http://www.lensrentals.com/blog/2013/06/sigma-optimization-pro-and-usb-dock ...
Posted by tyronet2000 on 16/09/2013 - 08:00
Sigma 500mm F7.2 - Pentax fit
This http://www.ebay.co.uk/itm/Sigma-500mm-f7-2-manual-focus-telephoto-lens-Nikon-fit/231047953639?_trksid=p1.m2287&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D156%26meid%3D1303090638778072658%26pid%3D100070%26prg%3D1087%26rk%3D3%26rkt%3D6%26sd%3D290972931585%26%26clkid%3D1303101633413...
Posted by jeallen01 on 15/09/2013 - 12:24
DA 50mm f1.8 or DA 35mm f2.4
Hi Stalky. Welcome! The 50 will give you better 'blurry' shots (bokeh) and is great for portraits if you have the space to step back a little. The 35 is a sweet little lens and lets you get in closer, but I have both (well, 50 1.4), and the 35 is almost never on the camera.
Posted by Darkmunk on 15/09/2013 - 13:40
a wide angle zoom choice of 3?
For street roaming then the compact DA15 will come into its own. For architecture then I think the Pentax12-24. For landscape then my choice would be the 12-24 too, it is just such a useful range. I wouldn't have just the 15, I would want something around 24 too. The DA12-28 should be out soon...
Posted by DrOrloff on 16/09/2013 - 09:54
a wide angle zoom choice of 3?
For street roaming then the compact DA15 will come into its own. For architecture then I think the Pentax12-24. For landscape then my choice would be the 12-24 too, it is just such a useful range. I wouldn't have just the 15, I would want something around 24 too. The DA12-28 should be out soon...
Posted by jules on 16/09/2013 - 10:31
Pentax 55-300mm or Pentax f 80-320mm ?
Matt, i replaced my 55-300 with the SMC F 70-210. The 70-210 knocks spots off the 55-300 for fast moving targets. The 55-300 you either have to pre-focus or manual focus. The 70-210 just snaps to focus no messing. The Tamron was also much better with AF. But other than the AF, the 55-300 is a nic...
Posted by Russ on 19/09/2013 - 08:39
Pentax 55-300mm or Pentax f 80-320mm ?
I have an 80-320, my Dad has a 55-300. I will say before I start that I like my 80-320, it has given me many shots which I'm proud of and my copy at least has no zoom creep whatsoever, if anything the zoom is on the stiff side. saying that, my Dad's 55-300 puts the 80-320 in the shade, especia...
Posted by Mongoose on 19/09/2013 - 11:10
Pentax 55-300mm or Pentax f 80-320mm ?
Couple of things the 55-300 has the F lenses don't: Quick shift focus Non-rotating front element Both of these could seal the deal. The rotating front element on the 70-210 rules out use of a CPL. Same applies to the 80-320. And the Sigma/Tamron options.
Posted by Russ on 19/09/2013 - 20:00
Pentax 55-300mm or Pentax f 80-320mm ?
Ok, now I am confused, I need top notch AF, need more reach at the long end then the short end, and of course good IQ, Now my f 70-210mm gives me all that, but if you are saying that a 20+ year old lens has better AF then the newer lens, you can have the best IQ in the world but if you miss the s...
Posted by MattyH on 20/09/2013 - 08:50
Pentax 55-300mm or Pentax f 80-320mm ?
I think the bottom line is that longer telezooms at the budget/consumer end of the market where most of us lie are all a bit pedestrian in terms of focussing speed. I suspect better quality and focus speed might come from pairing one of the fast, heavy and bright 70-200 f2.8 lenses with a good tele...
Posted by JonSchick on 20/09/2013 - 11:48
Pentax 55-300mm or Pentax f 80-320mm ?
I must admit I have been looking at the Tamron 70-200 f2.8 with a 1.4x converter but then hundred is turning into hundreds. I've tried this lens with a Kenko 1.5x and found the AF really hit and miss Doh,looks like its back to the drawing board.........or bank manager.:x
Posted by MattyH on 20/09/2013 - 12:25
Pentax 55-300mm or Pentax f 80-320mm ?
I used a Canon with USM lens on and found myself constantly checking the focus as it was so quiet and fast I couldn't tell whether it was working or not. Maybe a little noise is not a bad thing?:?
Posted by michaelblue on 24/09/2013 - 15:22
F & FA lens focus speeds
I've noticed my F35-70 lens focuses really quickly (on my nearly new K30 - thanks Russ) whereas my DA14 2.8 is not as quick - not to mention my 18-55mm. Does anybody know of a chart/table giving focus speed times of older F & FA lenses? One of the reasons I love the F35-70mm zoom is the speed at ...
Posted by RJ on 21/09/2013 - 12:33
F & FA lens focus speeds
F 70-210mm up there with the best and faster AF then the newer lenses.:D
Posted by MattyH on 21/09/2013 - 13:06
