[LargeFormat] Keep the list alive! - Off Topic - 6x6cm

[Brock Nanson]

Jim,

I can barely see what you're referring to in the lighthouse blow-ups. 
However, my guess is it's caused by the scanner.  You're getting in 
pretty darned close, so you could be getting a similar effect to what 
you see when you put your nose on your 32" television.  The RGB sensors 
don't line up perfectly in a scanner, so sometimes detail gets 
'adjusted' to suit the way the scanner sees things.

Could be wrong, just an idea.  As for why you see it in one only?  No 
idea!  Unless it is the lens...

Brock


Jim Hemenway wrote:

> Hi Folks:
> 
> Some of you folks know a lot about optics, so I'm wondering if anyone 
> can tell me if chromatic aberration is the name for the green and red 
> stripes on the sides of the lighthouse in the first picture in the set 
> below.  Look for the blow-up under the Boston Harbor photo on the left 
> side of the pair.
> 
> If it is chromatic aberration, why does it show up one one fisheye lens 
> and not the other?  Is there a missing element?
> 
> These are some side-by-side fisheye photos taken with the Arsat 30mm on 
> a Kiev 60, and the Zeiss F-Distagon 30mm on a Rollei 6008i.
> 
> When you click on any of them you'll be presented with large photos. If 
> you press your right mouse button, (in Netscape 7.1) and choose view 
> image, the photo(s) will be reduced in size to fit your screen. I think 
> that something similar is available in IE.
> 
> Astia 100
> 
> Most at f8 - f16
> 
> No sharpening
> 
> No PS work except for spotting.
> 
> http://www.hemenway.com/ArsatDistagon
> 
> Thanks,
> 
> Jim Hemenway