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johnriley

Joined: 19th March 2002

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johnriley
Nice one!

Comment by johnriley posted on Best lens for product photography? at 02/01/2010 - 23:19

johnriley
Quote:
John, what I don't understand is if there is software written for scanners to do the conversion correctly why has it not been done for the photo editing programs, surely the same principals apply.
Perhaps there is some software - perhaps a Google search?

Comment by johnriley posted on Converting colour negatives to positive at 02/01/2010 - 22:35

johnriley
The orange is an overall mask, so converting using a tungsten setting isn't ideal. You need to subtract the orange from the scan, which a scanner will do automatically.

Depending on how good you need to make the final image (which depends on the purpose) then there are cheap scanners available, or maybe a Nikon Coolscan second hand if you can fine one if you need top class results.

Comment by johnriley posted on Converting colour negatives to positive at 02/01/2010 - 22:21

johnriley
For high class product photography a macro lens might be appropriate, but say for pictures for eBay then the 18-55mm is all you need.

Comment by johnriley posted on Best lens for product photography? at 02/01/2010 - 22:18

johnriley
Compromise, get a 40" set, do you need 46"?

Compromise, just get the K7 without grip for now.

So options 1 and 2 together just might work.....sell a couple of lenses to make up the difference if you need to?

Comment by johnriley posted on YOUR CHOICE ? at 02/01/2010 - 22:15

johnriley
Glad to hear you got a good result.

Happy New Year!

Comment by johnriley posted on Kx infinity focus problem at 02/01/2010 - 16:29

johnriley
You've had one of the better mirror lenses, although a cat lens is a solid piece of glass as I recall, so not vulnerable to damage in the way most mirror lenses are.

The trouble is there are quite a few really poor lenses, plus those that have been handled badly, so the overall experience will be very mixed.

There's no reason why a mirror lens can't be a good lens, it's just that for various reasons often they are not.

Comment by johnriley posted on Catadioptric Lens at 02/01/2010 - 14:11

johnriley
Given that we never had this opportunity to test AF in the film days, not without going to considerable trouble, and given that there will have to be a compromise AF setting as individual lenses will have different tolerances, do you think we are over-checking and over-correcting these days?

Perfection is relatively unobtainable and I don't know the answer, but do these tweaks deliver real world benefits or is it largely covered by the Depth of Focus at the sensor plane?

Comment by johnriley posted on New K7 and my K10 bounces and lives at 02/01/2010 - 12:35

johnriley
Arrived safe and sound today, well packed and exactly as described.

Many thanks!

Comment by johnriley posted on For Sale - Pentax-FAJ 18-35mm at 02/01/2010 - 12:21

johnriley
I'm shifting this to General Discussion as it relates to PU Magazine rather than online competitions.

Comment by johnriley posted on New idea in the magazine at 02/01/2010 - 12:16

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