Archived posting to the Leica Users Group, 2015/07/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Color fringes with long lenses goes with the territory but has long been easily controlled with basic digital image processing software such as made by Adobe as in Photoshop or Bridge and I 'd think probably Lightroom and is built in the ACR Adobe Camera Raw filter even older versions. One shouldn't need this one could easily think I don't know how much glass made in the past millennium or this one other than some classic Leica glass was able to escape this issue. Its possible lens designers are worrying about it less now as they know it will be controlled in software and they can have no qualms about having the issue be in some of their top priced glass examples. Top long glass made by Canon and Nikon and I'm sure some made for Sony will be the bulk of what we're seeing in this type of work done by the top people. I don't think its really a niche market kind of thing without enough competition to result in a viable product choice. And I'm sure other glass companies. There is plenty to chose from in the over ten grand $ bracket. But also in the "many thousands" bracket" as well as "a few thousand". Just tell the kids to study hard and get scholarships! On 7/17/15 12:15 PM, "Bob Adler" <rgacpa at gmail.com> wrote: > Seems, by testing the Canon on different sensors, that this issue is > inherent > in the lens. Basically that leaves you searching for a software solution. > Things that seem to PPP to mind are using that free Adobe software to > calibrate the lens to, using a Mcbeth color chart to also figure out what > you > need to do in your raw processing to get the real chart to look like the > file > you create, or go to a different lens and use lense cast removal software > for > varying or critical apertures (Capture One has this) and apply this to your > images. Some kind of software workaround for a hardware problem? > Just thinking... > > Bob Adler > www.robertadlerphotography.com > >> On Jul 17, 2015, at 8:35 AM, Doug Herr <wildlightphoto at earthlink.net> >> wrote: >> >> I expect I'll have suitable test subjects for the 280 APO on the a7II next >> week when I'm camping with the grandkids. My comments about the Canon 500 >> L's color quality are derived from a few weeks using the lens with >> adapters >> on the R8/DMR. Many people don't see a difference. I do. Based on past >> experience it's something I expected from a Canon lens; I started this >> thread >> primarily to solicit suggestions for better color quality from this lens. >> The equipment choice is not in question IMHO. >> >> Before buying the 500 L I evaluated a number of lenses from several >> makers. >> The top candidate among Nikon lenses was the 500P, which eventually was >> eliminated because >> >> it weighs more than the 500 L >> it costs twice as much as the 500 L >> it shows magenta/green fringes in OOF high-contrast objects and the 500 L >> does not >> the focus and aperture rings turn the opposite direction vs. R lenses >> >> >> Doug Herr >> Birdman of Sacramento >> http://www.wildlightphoto.com >> http://doug-herr.fineartamerica.com >> >> >> -----Original Message----- >>> From: grduprey at mchsi.com >>> Sent: Jul 17, 2015 5:48 AM >>> To: Leica Users Group <lug at leica-users.org> >>> Subject: Re: [Leica] "new" equipment >>> >>> Doug, >>> >>> Have you tried the 280 on the Sony yet? I like the color rendition my >>> Nikon >>> 400mm f/2.8 gives, It seems to have more punch than the Canon's that >>> several >>> of my friends use. Do you have access to any Nikon Tele's? Also do you >>> get >>> the band when using the shutter in normal mode? >>> >>> Gene >>> >>> >>> ----- Original Message ----- >>> From: "Doug Herr" <wildlightphoto at earthlink.net> >>> To: lug at leica-users.org >>> Sent: Thursday, July 16, 2015 11:46:25 PM >>> Subject: [Leica] "new" equipment >>> >>> As some of you know Leica's failure to build a good solution for using R >>> lenses on a modern digital camera have led me to look elsewhere. The >>> Sony >>> a7II is looking promising so far: >>> >>> http://www.wildlightphoto.com/birds/trochilidae/calypte/anhumm23.html >>> http://www.wildlightphoto.com/birds/laridae/hydroprogne/catern00.html >>> http://www.wildlightphoto.com/birds/scolopacidae/calidris/wesand01.html >>> >>> What I like: the a7II is a lightweight full-frame camera with >>> readily-available parts and supplies. I can buy batteries at Fry's or >>> Amazon or B&H or eBay, for example. It has sensor-shifting >>> stabilization, >>> the viewfinder can be configured to show me where white plumage is being >>> clipped, and focus peaking is very handy. >>> >>> not so much: the silent shutter mode has a 'gotcha'; at faster shutter >>> speeds with a large-aperture adapted lens a dark band shows up on the >>> upper >>> half of the picture. >>> >>> TBD: I'm still struggling a bit with color quality. The Canon FD 500mm L >>> I'm using on the Sony is quite a good lens but the colors are dull >>> compared >>> with the 280mm f/4 APO (others might not see it, my eyes have been tested >>> and I have good color vision). Processing suggestions are welcome. >>> >>> Doug Herr >>> Birdman of Sacramento >>> http://www.wildlightphoto.com >>> http://doug-herr.fineartamerica.com >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information -- Mark William Rabiner Photographer http://gallery.leica-users.org/v/lugalrabs/