Search results for 'back focus' - page 1122
HD PENTAX DA AF 1.4X AW Rear Converter
Ah, I see. I did try setting it up for some bird shots but couldn't get the 'catch in focus' to work as the lens has no MFN switch and I didn't have the time to start taping up terminals etc. I'll try and set something up at the weekend.
Posted by RalphHardwick on 14/03/2014 - 07:09
HD PENTAX DA AF 1.4X AW Rear Converter
Well I just ordered mine off Amazon as they had one in stock. Will arrive tomorrow then I can give it a try with the DA* and HSM lenses. Nice thing with Amazon is I can return it within a month if it's not up to scratch (and if it is I can still send it back and buy one from SRS at the beginning ...
Posted by Mike-P on 14/03/2014 - 09:21
HD PENTAX DA AF 1.4X AW Rear Converter
Well I just ordered mine off Amazon as they had one in stock. Will arrive tomorrow then I can give it a try with the DA* and HSM lenses. Nice thing with Amazon is I can return it within a month if it's not up to scratch (and if it is I can still send it back and buy one from SRS at the beginning ...
Posted by bforbes on 14/03/2014 - 09:39
HD PENTAX DA AF 1.4X AW Rear Converter
Well I just ordered mine off Amazon as they had one in stock. Will arrive tomorrow then I can give it a try with the DA* and HSM lenses. Nice thing with Amazon is I can return it within a month if it's not up to scratch (and if it is I can still send it back and buy one from SRS at the beginning ...
Posted by Gamka on 14/03/2014 - 09:50
HD PENTAX DA AF 1.4X AW Rear Converter
you'll keep us informed? Of course. :) And I'll make sure I don't order from Amazon to ensure I do not get a pre-owned copy. Obviously the :wink: at the end of the sentence was a waste of time :roll: It will go back if it's not at least as good as the 1.7x IQ wise though.
Posted by Mike-P on 14/03/2014 - 10:23
HD PENTAX DA AF 1.4X AW Rear Converter
you'll keep us informed? Of course. :) And I'll make sure I don't order from Amazon to ensure I do not get a pre-owned copy. Obviously the :wink: at the end of the sentence was a waste of time :roll: It will go back if it's not at least as good as the 1.7x IQ wise though. If it does, write a ...
Posted by Gamka on 14/03/2014 - 12:23
HD PENTAX DA AF 1.4X AW Rear Converter
Need to see a spuggies eye Ralph :wink: Not quite a 'spuggie' and a bit more than an eye but not a bad test of the TC. I know it's a bit lazy taking back garden, bird feeder shots, but I had a kitchen to fit:(:(:( Taken with the K5iis, DA* 60-250 + 1.4 TC. 350mm @ f5.6, 1/500, ISO 400. Using '...
Posted by RalphHardwick on 15/03/2014 - 19:51
HD PENTAX DA AF 1.4X AW Rear Converter
The focus is ever so slightly off on the bird shot, it is front focussed a tad so this doesn't quite tell us the whole story, but it certainly looks promising. I would like to see some taken with the DA*300! Regards David
Posted by davidstorm on 15/03/2014 - 20:12
HD PENTAX DA AF 1.4X AW Rear Converter
The focus is ever so slightly off on the bird shot, it is front focussed a tad so this doesn't quite tell us the whole story, but it certainly looks promising. I would like to see some taken with the DA*300! Regards David I assume that I need to calibrate my lens then :(
Posted by RalphHardwick on 15/03/2014 - 20:45
HD PENTAX DA AF 1.4X AW Rear Converter
David, No offence taken:D As I said, I used 'Catch in focus' so the camera decided when to fire, not me. Therefore (technically) it should have been spot on! TBH I think the slight softness is, probably, induced by the TC. All my other shots with this lens have been crisp and sharp. If the we...
Posted by RalphHardwick on 15/03/2014 - 20:56
HD PENTAX DA AF 1.4X AW Rear Converter
The focus is ever so slightly off on the bird shot, it is front focussed a tad so this doesn't quite tell us the whole story, but it certainly looks promising. I would like to see some taken with the DA*300! Regards David --------------------------------------------- Probably the longest waiti...
Posted by dcweather on 16/03/2014 - 00:27
HD PENTAX DA AF 1.4X AW Rear Converter
From my limited use I have to say I am not exactly shouting from the rooftops about the rear converter. It is certainly fast to focus with the DA* lenses and the IQ is pretty reasonable but I get as good (if not slightly better) results with my Sigma 50-500mm OS. It doesn't play well with Sigma's HS...
Posted by Mike-P on 16/03/2014 - 17:38
HD PENTAX DA AF 1.4X AW Rear Converter
Even 1.4 could enable you to get a more accurate focus on the intended subject - which cropping would not do.
Posted by Dave_Evanson on 16/03/2014 - 20:03
HD PENTAX DA AF 1.4X AW Rear Converter
Even 1.4 could enable you to get a more accurate focus on the intended subject - which cropping would not do. and so long as there was no IQ degradation it would be worth it. However I'm not certain yet
Posted by RalphHardwick on 16/03/2014 - 20:15
HD PENTAX DA AF 1.4X AW Rear Converter
Even 1.4 could enable you to get a more accurate focus on the intended subject - which cropping would not do. and so long as there was no IQ degradation it would be worth it. However I'm not certain yet Well there will be IQ degradation, with any teleconverter. But if you are using a good lens,...
Posted by gwing on 16/03/2014 - 21:39
HD PENTAX DA AF 1.4X AW Rear Converter
I find the more recent comments in this thread regarding the marginal benefits of the convertor vs.cropping interesting, so it beggars the question who or what Pentax had in mind when developing the TC. For my own part I am watching with interest as I was considering the TC principally as a 'boo...
Posted by JohnX on 17/03/2014 - 09:36
HD PENTAX DA AF 1.4X AW Rear Converter
Like to add my tuppence worth to the 1.4x Tele debate. I look at it like this, the cost has bought me two new lenses, a 420mm 5.6 and a 77mm 2.4 (on my DA*s 300 and 55). So,With a break in the weather thought I would test the new converter on a most willing subject, not the most rare of birds or th...
Posted by fnf on 20/03/2014 - 12:51
HD PENTAX DA AF 1.4X AW Rear Converter
Interesting Mike. How did you do the focussing on the three? I'm just wondering if you used live-view for the test since it should get rid of any small focus errors in the different lens/combinations. Thanks for taking the time to put some comparisons up though.
Posted by Cuchulainn on 31/03/2014 - 14:56
HD PENTAX DA AF 1.4X AW Rear Converter
Interesting Mike. How did you do the focussing on the three? I'm just wondering if you used live-view for the test since it should get rid of any small focus errors in the different lens/combinations. No live-view used, just the normal viewfinder. My lenses are pretty much on the button focus wise w...
Posted by Mike-P on 31/03/2014 - 16:39
HD PENTAX DA AF 1.4X AW Rear Converter
Interesting indeed Mike. To my eyes the shot with TC looks sharper than the DA*300 on its own - which I didn't expect. From these images the Sigma to me looks pretty much as sharp as the 300 despite what most folks say. that's how it looks to me. Back focussing a bit?
Posted by Smeggypants on 31/03/2014 - 22:35
