Search results for 'back focus' - page 2870

Use * as a wildcard for partial matches


Heron wide open on A*300 + 2x-s

Having done my good deed for the day and brought back one of the nice old Pentax lenses from the states I managed to get out at lunch with it and caught this. It's had a lot of cleaning up to remove distracting background and I'm not good at gimp or cloning so there's probably loads of artifacts if ...

Posted by gwing on 31/03/2014 - 15:03

Across Riddlesdown, at 14mm

Well here's a quick go from a single RAW. Nigel - the 'brighter' DNG RAW was unusable with really blown out sky so I've used the darker one. Even this has some blown bits in the sky so the optimum exposure for your camera would probably be a stop darker still, on the K5 type sensors this one ...

Posted by gwing on 02/04/2014 - 20:03

Across Riddlesdown, at 14mm

Thanks for trying that Rob, I've been experimenting a bit as well - unfortunately can't post the images until very late tonight as I don't have a strong enough WiFi connection for my laptop for now. The next darkest image was very underexposed, I doubt you'd get much quality brightening out of it...

Posted by gwing on 02/04/2014 - 22:38

Across Riddlesdown, at 14mm

:lol: now I never thought I might provoke that :wink: .. So I've been told so far to buy a K5 & a set of Hitechs - this is proving to be an expensive shot! But at least we agree that such a scene is beyond the DR of a sensor such as that in the K7 - I believe many would not. gwing wrote ... 'W...

Posted by McGregNi on 03/04/2014 - 00:12

Across Riddlesdown, at 14mm

This raises some interesting questions, and I'm grateful to you all for the help and additional input here. I'll try and clarify as much as I can: The 'IMAGE A' jpg that Andrew has used was produced from the DNG I provided to Rob, the one named 'Nigels Riddlesdown Darker' (ie the less exposed of ...

Posted by McGregNi on 04/04/2014 - 11:37

Across Riddlesdown, at 14mm

I cannot conclude anything of the sort so far ... I know by instinct I prefer my own HDR as viewed in total - I have a 'layperson' here who didn't know anything of the origins of the images or which was 'mine' and there was no hesitation at all in picking out the HDR as the one, so I don't think thi...

Posted by McGregNi on 04/04/2014 - 11:55

Across Riddlesdown, at 14mm

I cannot conclude anything of the sort so far ... I know by instinct I prefer my own HDR as viewed in total - I have a 'layperson' here who didn't know anything of the origins of the images or which was 'mine' and there was no hesitation at all in picking out the HDR as the one, so I don't think thi...

Posted by Smeggypants on 04/04/2014 - 13:10

Across Riddlesdown, at 14mm

Nigel wrote "we haven't even really looked in any detail" There are art historians around the world attending seminars that go into less detail than you Nigel :lol: It will be sad day when a photographic image is judged on its Dynamic Range and the shape of its histogram.' We are limiting it to...

Posted by McGregNi on 04/04/2014 - 15:10

Across Riddlesdown, at 14mm

I've now gone back to the original HDR image and carried out a few more adjustments, taking on board a few of the comments that have been made. I have boosted mid-tone contrast a touch, burnt in a few shadows and given it a boost of micro-contrast and detailing. I hope it will become the new contend...

Posted by McGregNi on 04/04/2014 - 19:05

Across Riddlesdown, at 14mm

Thanks Rob, thats a real contender! I take on board Andrew's point above about the difficulty of pixel-peeping on relatively small files, but I do think I can probably draw some conclusions on the main differences. I've got the images downloaded and will take some comparitive looks and report back. ...

Posted by McGregNi on 04/04/2014 - 22:09

Across Riddlesdown, at 14mm

It would be great to work together of course, I'm sure it would be enjoyable. But really is there any contradiction here? I don't deny that focussing on the artistic will ultimately lead to better results than less lower quality artistic results 'boosted' by processing - I don't believe that anymore...

Posted by McGregNi on 04/04/2014 - 22:37

Across Riddlesdown, at 14mm

Interesting!! Nigel, I did receive your RAW files by email (thanks). The first thing I did was to open the "darkest" RAW in a trial copy of RawDigger. The histograms shown below refer to the RAW data not to the preview image in the RAW. As you can see, although there is around 5% clipping in ...

Posted by andrewk on 06/04/2014 - 22:53

Across Riddlesdown, at 14mm

There's some impressive analysis going on here! Those screen shots are very amazing showing all that data, thanks guys. This does focus the issue only our exposure options and choices, and its very interesting to be gaining more insight into the subtlies behind the ETTR approach and what software ca...

Posted by McGregNi on 07/04/2014 - 10:56

Across Riddlesdown, at 14mm

I'm just looking at the images you have posted here Andrew so I can't post 100% crops of those. These are 100% crops from the full size images that were used to export the JPEGs posted earlier. You said that you could see "very desirable extra detail in the clouds" - so where is it? The ver...

Posted by gwing on 07/04/2014 - 14:18

Across Riddlesdown, at 14mm

:) These are all valiant & superb efforts. What I do find curious, and a bit ironic, is the extraordinary commitment to the single file option .... originally this debate kicked off with comments about the non-necessity for HDR, and how much more trouble it was - the word 'hassle' was used to descr...

Posted by McGregNi on 07/04/2014 - 14:40

Across Riddlesdown, at 14mm

:) These are all valiant & superb efforts. What I do find curious, and a bit ironic, is the extraordinary commitment to the single file option .... originally this debate kicked off with comments about the non-necessity for HDR, and how much more trouble it was - the word 'hassle' was used to descr...

Posted by Smeggypants on 07/04/2014 - 16:51

Across Riddlesdown, at 14mm

Guess this is wrapping up now, and no better way then answering the question about the Samyang 14mm. There's been plenty of previous discussion and here's a couple of links which have some good info ... https://www.pentaxuser.com/forum/topic/samyang----35676/p-0#comm_507029 https://www.pentaxu...

Posted by McGregNi on 08/04/2014 - 18:46

Across Riddlesdown, at 14mm

:D Oh dear, this ones going to keep on coming back! I've enjoyed it all, thanks to everyone who's chipped in, and especially to Rob & Andrew for putting up such a spirited defense. May the debate continue elsewhere ....

Posted by McGregNi on 08/04/2014 - 20:40

Across Riddlesdown, at 14mm

Of course it's going to keep coming back. It just so happens that one of the darktable devs sent out a testing request for an enhanced highlight reconstruction module so I thought I'd better give it a go, hence another single image from the 'darker' original posted here :) I can now join ...

Posted by gwing on 08/04/2014 - 22:48

Test of the SMC-F 70-210

Agree that there is something special about the pictures this lens produces. I've recently bought a copy after regretting selling one a couple of years back. I am, however, keeping the DA 50-200mm. Why? Because the F 70-210 is heavy and noisy (and, to some, ugly). You can't be having that takin...

Posted by TonyM on 03/04/2014 - 11:13

Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo