Search results for 'back focus' - page 1207
New lenses for Pentax Cameras
I have a few more in the Pentax back catalog to get before starting to look at new stuff but there is a window of opportunity to start saving. I have the HD Pentax-D FA* 50/1.4 and once I had a good play with it my previously treasured SMC A50/1.2 wilted in my eyes, left my bag, got packed away and ...
Posted by robbiec on 02/01/2019 - 19:26
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
I was given an old Sigma 50mm f/2.8 1:1 Manual Focus Macro Lens for Pentax KA/K7/PKA/K-1. I am just wondering how you would rate this lens in comparison with what is available today? On a scale of 1 thru 10, 1 being a cheap kit macro lens and 10 being the best macro lens money can buy; where would...
Posted by Johnhoward28 on 01/01/2019 - 21:16
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
Here are some test shots I took last night. Tell me what you think of how the lens performed with a focus and what could be improved in another lens choice (if anything) Mode: Auto with LED computer reading light for light source. Mode: Auto with LED computer reading light for l...
Posted by Johnhoward28 on 02/01/2019 - 17:45
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
Certainly seems to be performing well judging by those sample shots. If you don't like it, let me know :D Thanks. I do think it is sharp and will work well for most of my needs. The one thing that worries me is that I like to take shots of living insects, and with this lens, I have to get to rea...
Posted by Kim C on 02/01/2019 - 19:45
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
[quote:3496ace15f="derek897"]Certainly seems to be performing well judging by those sample shots. If you don't like it, let me know :D Thanks. I do think it is sharp and will work well for most of my needs. The one thing that worries me is that I like to take shots of living insects, and with th...
Posted by Johnhoward28 on 02/01/2019 - 20:09
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
There are so many excellent manual focus 100mm macro lenses that it's hard to imagine we could find a really bad one.
Posted by johnriley on 02/01/2019 - 21:56
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
[quote:3496ace15f="walkeja"]0 it's a Sigma. Might be good opticaly but very poor mechanicaly. What do you base that on, :roll: Plenty of us happily using sigma on here. No better or worse than any other brand. I've several Sigma lenses, 8-16mm 12-24mm, 17-70mm, 100-300mm and they are all super...
Posted by Kim C on 02/01/2019 - 23:55
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
[quote:3496ace15f="derek897"][quote:3496ace15f="walkeja"]0 it's a Sigma. Might be good opticaly but very poor mechanicaly. What do you base that on, :roll: Plenty of us happily using sigma on here. No better or worse than any other brand. I've several Sigma lenses, 8-16mm 12-24mm, 17-70mm, 100...
Posted by derek897 on 03/01/2019 - 00:30
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
I don't get it, we as pentax users should know better than to believe everything that's posted on forums, if we wanted to we could find posts and threads about failures and breakages and quality control in our own brand , in canikon, samyang, tokina , oly, pano, so knee :D And every other marque o...
Posted by Kim C on 03/01/2019 - 10:37
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
Kim, if you look back through the posts, my question was in direct reply to Walkeja's post, as he has a tendency to write inflammatory posts and then disappear. I was specifically asking Him what his rating of 0 was based on, as if we were to apply the same criteria to our own brand, what score c...
Posted by derek897 on 03/01/2019 - 11:48
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
[quote:3496ace15f="walkeja"]0 it's a Sigma. Might be good opticaly but very poor mechanicaly. What do you base that on, :roll: Plenty of us happily using sigma on here. No better or worse than any other brand. In 1999, I went to Florida and I bought a Pentax 80-200mm zoom whilst out there. Bef...
Posted by derek897 on 03/01/2019 - 15:19
Scale of 1 to 10. How would you rate the old Sigma 50mm f/2.8 Macro lens today?
[quote:3496ace15f="derek897"][quote:3496ace15f="walkeja"]0 it's a Sigma. Might be good opticaly but very poor mechanicaly. What do you base that on, :roll: Plenty of us happily using sigma on here. No better or worse than any other brand. In 1999, I went to Florida and I bought a Pentax 80-200...
Posted by walkeja on 05/01/2019 - 10:38
12-24 On Full Frame
In answer to David's question - neither. The gallery picture is only a minor crop to straighten, rather than crop to APSC. The 12-24 is not ff compatible but it's not bad to use. Sharpness to edges is surprisingly ok. Centre sharpness is plenty good enough. So knowing the limitations then it...
Posted by DrOrloff on 05/01/2019 - 22:44
screw drive DA*300mm?
I've got both the DA*300 F4 and the Pentax FA*300 F4.5. The FA* is just as good in sharpness and is faster to focus on a modern Pentax body. It is also smaller and lighter than the DA*. There is also the F*300 F4.5 which was the predecessor of the FA*, but had a tripod mount. The DA* has the advan...
Posted by walt on 08/01/2019 - 11:22
SDM Strikes Again
I bought my DA*16-50 back in 2011. Its optics are excellent but the autofocus started to become unreliable around 18 months ago and just before Christmas it packed up altogether. Johnsons advised that a repair would be in the region of £180 to £220. Having read of others having multiple failures tha...
Posted by Darrel on 25/01/2019 - 10:07
SDM Strikes Again
Hi All - thanks for taking the time to reply to my post - all very interesting! Ideally, Pentax would have redesigned and retro-fitted free of charge via a recall. Back in the real world, that was never going to happen but by ignoring the issue Pentax haven't done themselves any favours. What I'd ...
Posted by Darrel on 25/01/2019 - 17:11
Revamped FA 35mm f/2 rumor
To cap it all 35mm is a useless size on FF. Back in the film days the demand was for 28mm-xxmm zooms and 28mm or 24mm primes :mrgreen: 28mm can be easily cropped to 35mm on FF or APS-C I can't remember Vivitar doing a 35mm K mount prime. They did the early 42mm screw mount in 35mm. --
Posted by Algernon on 31/01/2019 - 16:00
Revamped FA 35mm f/2 rumor
To cap it all 35mm is a useless size on FF. Back in the film days the demand was for 28mm-xxmm zooms and 28mm or 24mm primes :mrgreen: 28mm can be easily cropped to 35mm on FF or APS-C I can't remember Vivitar doing a 35mm K mount prime. They did the early 42mm screw mount in 35mm. -- This is...
Posted by RobL on 31/01/2019 - 16:27
Revamped FA 35mm f/2 rumor
I meant that all old designs being revamped should be WR and QSF including the Limiteds. I think the trouble with this approach is this: New coatings and focus grip is not much of an engineering challenge. The revamped lens can be produced immediately, and importantly sold for a reasonable price....
Posted by pschlute on 01/02/2019 - 13:34
Revamped FA 35mm f/2 rumor
Returning to my previous point: Producing a range of DSLRs that are all WR, and even cheap WR kit lenses, while not upgrading the existing good lenses to be WR seems totally idiotic to me. I would have thought that these should sell at least as well as the Limiteds do now, and I'm sure there...
Posted by MrB on 02/02/2019 - 11:33
