Comments made by johnwhit - Page 13

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I think I've posted this before but worth another post IMHO:

http://www.dpreview.com/articles/7333489584/variation-facts-and-fallacies

I have no trouble calibrating all the 3rd party AF lenses I've tried, these include Sigma 10-20, Sigma 24/2.8 AF, Tamron 90/2.8, the Tamron being the only one requiring +/- 0 on my K20D

John

Comment by johnwhit posted on K-5 Focus Questions at 26/04/2013 - 19:52

Bump.

Comment by johnwhit posted on Filter clearout 77, 67, 58, 52 & 49mm at 26/04/2013 - 19:27

Bump

Comment by johnwhit posted on Filter clearout 77, 67, 58, 52 & 49mm at 25/04/2013 - 20:10

Thanks Jason, much appreciated.

John

Comment by johnwhit posted on FS: Filters 49 & 52mm at 25/04/2013 - 15:17

gwing wrote:

That said I'm happy with 16MP myself and would take an increase in dynamic range over increased pixel count any day.

Yes, me too.

gwing wrote:

I'll happily agree that for most lenses, most of the time, there is unlikely to be any noticeable benefit - but please let's not pretend there is no advantage at all in increased resolution.

Very little in pracice it seems even with a Zeiss ZS 50mm f/1.4 @ f/4

http://www.photozone.de/dslr_reviews/478_canon_eos_7d?start=2

John

Comment by johnwhit posted on Maybe light at the end of the tunnel? at 25/04/2013 - 14:51

Thanks Peter, of course your correct it's Acrobat X, I was given it together with CS5 hence the confusion. I'm thinking I may just be as well to scan everything for archive and produce content for web later. I'm basically only using Vuescan for TWAIN through PS5 or Acrobat because Epson have no drivers for my scanner suitable for Win 7 64 bit

John

Comment by johnwhit posted on Any Advanced Acrobat users, seeking advice at 25/04/2013 - 13:53

johnha wrote:
..... but I feel the future is in smaller sensors with higher resolutions.

At 16MP on an APS-c sensor, you've hit the limit of lens resolution even with the best primes available. So if you need a genuine increase the only way is a bigger sensor. Unfortunate but unless they re-write the laws of Physics you'll just get bigger files ans fill up storage faster.

See:

http://www.luminous-landscape.com/tutorials/resolution.shtml

John

Comment by johnwhit posted on Maybe light at the end of the tunnel? at 25/04/2013 - 13:10

Gwyn wrote:

johnwhit wrote:
[

For a moment I thought we were going to see the 1.4x SDM converter.

John

Truly a mythical beast.

I'm happy with my K-5 II. I shan't be replacing it in a hurry, if at all.

True, I wouldn't mind hanging..........erm my camera on one of those models though

John

Comment by johnwhit posted on Maybe light at the end of the tunnel? at 25/04/2013 - 13:04

I'd like to scan a large collection of magazine articles into Adobe Acrobat (CS5) Ideally I'd like to save an archive version and a web version at the same time into two seperate directories. Could anyone tell me if this is possible or if there's is a script available to automate the process please? I'm using a PC, Win 7 64 bit BTW, Epson 1260 scanner and Vuescan Pro.

Alternatively a way to do the same in Photoshop CS5 saving as a pdf.

TIA,

John

Comment by johnwhit posted on Any Advanced Acrobat users, seeking advice at 25/04/2013 - 12:12

Algernon wrote:
I've heard that they are also working on a new lens!

This is more interesting link

'

For a moment I thought we were going to see the 1.4x SDM converter.

John

Comment by johnwhit posted on Maybe light at the end of the tunnel? at 25/04/2013 - 11:06

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