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Agency Based Discussion => Alamy.com => Topic started by: NikonScott on August 11, 2008, 13:32

Title: soft and lacking definition
Post by: NikonScott on August 11, 2008, 13:32
A friend just sent me these to links.  I do not look at Ken Rockwell very often, but these looked interesting:

http://www.kenrockwell.com/tech/unsharp.htm (http://www.kenrockwell.com/tech/unsharp.htm)

http://www.kenrockwell.com/tech/lens-sharpness.htm (http://www.kenrockwell.com/tech/lens-sharpness.htm)

Scott
Title: Re: soft and lacking definition
Post by: Magnum on August 11, 2008, 14:04
That´s the first thing I thought about when submitting to Alamy.  Why upsizing?  Let the buyers do that, if they want to...
Title: Re: soft and lacking definition
Post by: astrocady on August 11, 2008, 15:36
Yep -- multiple resizings, and multiple re-JPGing is the fastest way to ruin a good image.  I don't understand it either.
Title: Re: soft and lacking definition
Post by: Steve on August 11, 2008, 23:00
They want you to go shoot in a format that can get those sizes naturally.  I believe that some high end DSRLs, 4x5 film and maybe medium format film can all produce images of the requires size.
Title: Re: soft and lacking definition
Post by: litifeta on August 12, 2008, 03:46
Got 2 questions after reading that stuff.

Does this make the Sigma SD14 a much better buy considering the seperate RGB CCDs?

If you had a good scanner, for Alamy printing a good pic and then scanning it at the larger size would be better?
Title: Re: soft and lacking definition
Post by: litifeta on August 12, 2008, 03:58
has anyone tried this?

http://www.alienskin.com/blowup/index.aspx (http://www.alienskin.com/blowup/index.aspx)
Title: Re: soft and lacking definition
Post by: michealo on August 12, 2008, 05:16
Got 2 questions after reading that stuff.

Does this make the Sigma SD14 a much better buy considering the seperate RGB CCDs?

If you had a good scanner, for Alamy printing a good pic and then scanning it at the larger size would be better?

Sigma SD14 - not very good at dealing with noise

printing and scanning the print  - no, you would loss detail and possibly add noise printing and again at scanning, better to process in a lossless format eg tiff
Title: Re: soft and lacking definition
Post by: NikonScott on August 12, 2008, 11:23
If you scan a 35 mm slide with a 4000 dpi film scanner like the Nikon coolscan 4000 or 5000 you will get about a 52 mb file.  Probably, 50% of my alamy pics are done that way.

It is interesting that others have gotten a different bent on the articles than i did.  Maybe, I should reread them.

Scott