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Poor quality reductions in photoshop when compared to DPP
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RichardInJapan

Joined: 21 Jan 2010
Posts: 1



PostPosted: Thu Jan 21, 2010 9:47 pm    Post subject: Poor quality reductions in photoshop when compared to DPP Reply with quote

Hi there,

This is my first post on this forum and I'm hoping that somebody can help me. I currently use a Canon 50D to take photos for my website. The software which comes with it (Digital Photo Professional) is pretty good but it naturally lacks the advanced features which Photoshop has. Consequently I've been using Photoshop CS3 to make fine adjustments to my shots and horizon corrections.

However, I've noticed that the resizing capabilities of photoshop are inferior when compared to the results which I get with DPP. With DPP I get nice, sharp reductions but with Photoshop I get disappointing results. Interestingly I find that Bicubic Sharper provides the worst results with landscapes looking like they've had a fine Mosaic or 'bubble' effect applied (this is when I open the raw file in Adobe Camera Raw and then open Photoshop).

This is a real shame as I'd love to work with photoshop from Raw. Currently I have to resize my image with DPP, save it as a JPEG and then make any adjustments which I require in photoshop without resizing, which is a bit of a shame as it's not exactly an ideal workflow. It's also annoying as I can't really do any kind of horizon correction without losing a lot of detail in my pictures.

Any advice would be greatly appreciated. Has resizing been improve in CS4?
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krowland

Joined: 26 Jan 2010
Posts: 1



PostPosted: Wed Jan 27, 2010 12:18 am    Post subject: Reply with quote

I read in numerous places that in fact DPP is better at handling RAW images than Adobe Camera RAW, so I'm not surprised. DPP knows about and uses more of the Canon camera parameters than Adobe RAW does, or so I'm told. So many have found it better to do the RAW adjustments in DPP then export to Photoshop.

I was not aware that the resizing could be affected also. It sounds like it would be better to resize in DPP, but be aware that then you can Transfer to Photoshop in 16-bit color TIFF file and not lose any quality by going to JPEG.

Once in PS, I then save as PSD, then you can perform your Photoshop edits with 16-bits tools, before reducing to 8-bit for the remaining adjustments and filters.

Lastly I create any JPEG files I need, so no loss of quality until then. You might try using DPP to get from RAW to TIFF into PS and then reduce and see if that is better. But if not, I wouldn't be surprised if DPP does a better job.

What experience does anyone else have?
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