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Help Processing With A New Lens!  
User currently offlineDazbo5 From United Kingdom, joined Mar 2005, 2913 posts, RR: 2
Posted (8 years 2 months 4 days 20 hours ago) and read 4578 times:

Morning!

I'm using a Canon 350D and up to 3 weeks ago, I was using a Canon 75-300 IS USM lens. I've since changed to a Sigma 50-500 EX APO DG which is much sharper, especially over 200mm. My problem is, my processing workflow for the 75-300, particularly with regards to sharpening, worked really well. However, since swapping lenses, I can't get to grips with sharpening. For some reason, the way I'm used to sharpening my images just doesn't seem to work with this lens and all I end up with is soft or over-sharpened, very jagged images. Its rather frustrating since the images are pretty sharp straight from the camera, but I just can't seem to process them, they look worse afterwards!

This is one example. I took this on a very sunny morning in Manchester yesterday. All I've done is centre and resize the image. No sharpening has been applied. I did try but you don't want to see the results!

Big version: Width: 1024 Height: 683 File size: 471kb


In my workflow, before resizing, I'd normally run one or two passes of USM at 50%, 0.2, 0, then resize and apply once more if requred. This worked really well with the 75-300, but its useless with the 50-500. I didn't think a change of lens would make much difference!

Any other technique is alien to me as this is what I've been used to doing for 2 years, and its always been fine. Any tips on how to sharpen up this one? I've searched the forum and read a few things, but didn't really understand what the process was.

Thanks in advance,

Darren


Equipment: 2x Canon EOS 50D; Sigma 10-20 EX DC HSM, 50-500 EX APO DG, Canon 24-105 f/4 L, Speedlite 430EX
11 replies: All unread, jump to last
 
User currently offlineJumboJim747 From Australia, joined Oct 2004, 2464 posts, RR: 44
Reply 1, posted (8 years 2 months 4 days 19 hours ago) and read 4569 times:

Quoting Dazbo5 (Thread starter):
normally run one or two passes of USM at 50%, 0.2, 0, then resize

I would try to sharpen after re size NOT before.
That could be your problem.
Cheers



On a wing and a prayer
User currently offlineDazbo5 From United Kingdom, joined Mar 2005, 2913 posts, RR: 2
Reply 2, posted (8 years 2 months 4 days 12 hours ago) and read 4534 times:

Quoting JumboJim747 (Reply 1):
I would try to sharpen after re size NOT before

Thanks for that. I've tried that and this is the end result. The original image, straight from the camera is quite sharp, just needs a little bit of sharpening. This is the result of a touch of sharpening, applied after resizing.

Big version: Width: 1024 Height: 683 File size: 551kb


I can see jaggies all over the place and it just looks over-sharpened to me even though only a tiny amount has been applied. For some reason, I just can't get to grips with sharpening with the new lens when my workflow was fine before (1058 images on here says so as well!).The new lens is great, produces some nice images but downsizing them just seems to create loads of jaggies. Quite frustrating!

Thanks again,

Darren



Equipment: 2x Canon EOS 50D; Sigma 10-20 EX DC HSM, 50-500 EX APO DG, Canon 24-105 f/4 L, Speedlite 430EX
User currently offlineJumboJim747 From Australia, joined Oct 2004, 2464 posts, RR: 44
Reply 3, posted (8 years 2 months 4 days 12 hours ago) and read 4525 times:

Darren what sharpening are you using USM ?
If so are you using layers then it would be easy to erase the jaggies that appear after you apply USM.
Also what are your settings for the USM ?
Cheers



On a wing and a prayer
User currently offlineJeffM From United States of America, joined May 2005, 3266 posts, RR: 51
Reply 4, posted (8 years 2 months 4 days 11 hours ago) and read 4521 times:

Quoting JumboJim747 (Reply 3):
If so are you using layers then it would be easy to erase the jaggies that appear after you apply USM.

Or you could do it the smart way and sharpen only what you want the first time using a layer mask.

I've never understood why you would sharpen everything, then hopefully erase what you don't need. Extra steps, extra chance to screw something up.

Erasing from a layer is non-recoverable. Using a layer mask is, and much more adjustable on the fly.


User currently offlineDazbo5 From United Kingdom, joined Mar 2005, 2913 posts, RR: 2
Reply 5, posted (8 years 2 months 3 days 21 hours ago) and read 4474 times:

Thanks guys. The settings are 50%, 0.2, 0. These have always done the trick for me but not with this lens! I'd normally select everything other than the sky to sharpen, then selectively sharpen anything which needs an extra kick. On some shots, even after resizing I'm getting jaggies! I've never used layers to sharpen, I guess I'd better start trying!

Another example, this has just been rejected for 'soft' and 'oversharpened'. I just can't seem to get to grips with this lens at all now and everything is getting rejected (begining to wish I hadn't bothered upgrading my lens!).

http://www.airliners.net/addphotos/r...717_Astraeus-B737-33A-G-STRJ-3.JPG

Thanks again,

Darren

[Edited 2006-07-17 10:48:14]


Equipment: 2x Canon EOS 50D; Sigma 10-20 EX DC HSM, 50-500 EX APO DG, Canon 24-105 f/4 L, Speedlite 430EX
User currently offlineLGW From , joined Dec 1969, posts, RR:
Reply 6, posted (8 years 2 months 2 days 17 hours ago) and read 4434 times:

Darren,

Looks like you're getting to grips with the editing judging by your recent uploads?

Ben


User currently offlineGranite From UK - Scotland, joined May 1999, 5568 posts, RR: 63
Reply 7, posted (8 years 2 months 2 days 17 hours ago) and read 4430 times:
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Darren

One pass of between 400-500%, 0.2, 0 and then selectively sharpen after that. Any in-camera sharpening should be turned off or set to 0.

Regards

Gary


User currently offlineLinco22 From United Kingdom, joined Jun 2005, 1380 posts, RR: 15
Reply 8, posted (8 years 2 months 2 days 16 hours ago) and read 4413 times:

Agree with all of the above. Darren, lovely light you got. Still quite soft to me.

Jeff, layer mask would be wonerful and I would use it believe me, but I only have Elements. But you are right, I'm always nervous about sharpening especially on more detailed shot. Chances of screwing up increase.

Regards
Colin  Smile


User currently offlineLGW From , joined Dec 1969, posts, RR:
Reply 9, posted (8 years 2 months 2 days 16 hours ago) and read 4405 times:

Darren,

I got problems when I went from D30 to 30D, the images just didnt respond to the same treatment so I had to have a play and it took a while but I think I am getting used to my new way of working; best to try everything, find whats best for you, and remember no setting is best for all images.

Ben


User currently offlineViv From Ireland, joined May 2005, 3142 posts, RR: 28
Reply 10, posted (8 years 2 months 2 days 16 hours ago) and read 4399 times:

Quoting LGW (Reply 9):
no setting is best for all images

 checkmark   checkmark   checkmark 

Absolutely right! But try to convince the "Shoot at aperture-priority f/8 at all times" brigade.

Lots of those strange people upload here ...



Nikon D700, Nikkor 80-400, Fuji X Pro 1, Fujinon 35 f/1.4, Fujinon 18 f/2
User currently offlineDazbo5 From United Kingdom, joined Mar 2005, 2913 posts, RR: 2
Reply 11, posted (8 years 2 months 2 days 14 hours ago) and read 4383 times:

Quoting LGW (Reply 6):
Looks like you're getting to grips with the editing judging by your recent uploads?

I wouldn't say that Ben, 2 out of 3 were rejected with the common theme of soft or oversharpened! And some of those were taken with the old lens. I just can't seem to get the balance right at the moment between not applying enough USM and too much. That's what I can't understand at the moment. The ones that I got accepted turned out fine (obviously!), but the ones that were rejected, having looked at them closely again, I understand the rejections, were taken in the same light and treated in the same way and processed like I normally do. For some reason, even though the original image is fine, I just can't seem to get the end product. Frustrating but I'll get their!

Quoting Granite (Reply 7):
One pass of between 400-500%, 0.2, 0 and then selectively sharpen after that. Any in-camera sharpening should be turned off or set to 0

Thanks Gary, I'll give those settings a go because the setting I've been using simply aren't working at all with this lens. All in-camera sharpening is set to 0, has been since I got the 350D over 12 months ago. The only thing that I've changed is the lens. Its amazing that a simple change to higher quality glass has caused these issues.

Thanks again for all your replies and tips. I'll give them a go and see what damage I can do to them!

Darren



Equipment: 2x Canon EOS 50D; Sigma 10-20 EX DC HSM, 50-500 EX APO DG, Canon 24-105 f/4 L, Speedlite 430EX
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