lm_user Posted May 8 Share #1 Posted May 8 Advertisement (gone after registration) Is a yellow cast common on Telyt 560 f/6.8 lenses? Mine looks just like the attached photo from the web My 400 (sister lens) has no color cast I have used UV lamp for a week with no success. Is this normal? Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/421069-telyt-560-f68-yellow-cast/?do=findComment&comment=5798204'>More sharing options...
Advertisement Posted May 8 Posted May 8 Hi lm_user, Take a look here Telyt 560 f/6.8 Yellow Cast. I'm sure you'll find what you were looking for!
Michael Geschlecht Posted May 8 Share #2 Posted May 8 Hello im_user, Does the color cast seem to be on the surface of the lens on 1 side or the other? Meaning. when you look thru 1 side of the lens: Do you look thru clear glass to see the yellow on the surface of the other side of the lens? And, when you turn the lens to look thru the otherside: Does the color cast seem to be on the surface of that side of the lens? Best Regards, Michael 1 Quote Link to post Share on other sites More sharing options...
lm_user Posted May 8 Author Share #3 Posted May 8 Seems to be embedded and perfectly uniform. Same color in both directions Quote Link to post Share on other sites More sharing options...
Michael Geschlecht Posted May 8 Share #4 Posted May 8 (edited) Hello im-user, Have you tried GENTLY cleaning the lens surfaces with NO liquid? Altho it is OK to blow on the lens surface GENTLY (For a tiny bit of moisture.) before GENTLY wiping the lens surface. What color is the lens coating of your 400mm f6.8 Telyt? What color is the lens coating of your 560mm f6.8 Telyt? Do the 400mm lens & the 560mm lens both have the same first 3 digits of their serial numbers? Best Regards Mihael Edited May 8 by Michael Geschlecht Quote Link to post Share on other sites More sharing options...
erl Posted May 8 Share #5 Posted May 8 The real question is; do the images it creats have a colour cast? Colour of the glass is immaterial if the images are 'neautral', whatever that means. 1 Quote Link to post Share on other sites More sharing options...
jankap Posted May 8 Share #6 Posted May 8 (edited) That means, that the camera corrects the colour cast. But it does this correction by extra amplifying blue. I found this in YT. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited May 8 by jankap Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/421069-telyt-560-f68-yellow-cast/?do=findComment&comment=5798344'>More sharing options...
erl Posted May 8 Share #7 Posted May 8 Advertisement (gone after registration) On my well calibrated screen, that pic of the man with large lens looks definitely heavily Blue. Something did not get corrected. Fact is, I do not understand how the 'camera' can decide what colour cast a lens may or may not introduce, much less correct for it. Even AI (whatever that is) could not get it right, because 'right' is only a matter of taste. Quote Link to post Share on other sites More sharing options...
jankap Posted May 8 Share #8 Posted May 8 (edited) Of course not with film cameras.🫠 Large lens? Calculating: 560mm div 6.8 gives 83mm (plus x). Was this an adopted lens? Edited May 8 by jankap Quote Link to post Share on other sites More sharing options...
lm_user Posted May 8 Author Share #9 Posted May 8 Recently adopted…. Traveling for work this week. Lens is “cooking” in uv light while I am gone… Quote Link to post Share on other sites More sharing options...
jankap Posted May 8 Share #10 Posted May 8 I meant, if it is a rebranded lens. Made by Sigma, Zeiss, Schneider or Minolta and became a red dot added. Must not be negative property. Quote Link to post Share on other sites More sharing options...
Helge Posted May 8 Share #11 Posted May 8 The 560mm 6.8 (and the older 5.6 as well) is a genuine Leica lens. It uses probably specific Leitz glasses, which could be slightly tinted. 1 Quote Link to post Share on other sites More sharing options...
lm_user Posted Saturday at 11:52 PM Author Share #12 Posted Saturday at 11:52 PM My lens. Still yellow tint. ( test shots to follow ) Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/421069-telyt-560-f68-yellow-cast/?do=findComment&comment=5803645'>More sharing options...
lm_user Posted Saturday at 11:53 PM Author Share #13 Posted Saturday at 11:53 PM (edited) Full and 100 pct crop. I am pleased…. 1/500 at f/11 on tripod with cable release Room for improvement Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited Saturday at 11:57 PM by lm_user 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/421069-telyt-560-f68-yellow-cast/?do=findComment&comment=5803646'>More sharing options...
lm_user Posted Saturday at 11:54 PM Author Share #14 Posted Saturday at 11:54 PM Planning some more shooting tomorrow if weather and wildlife cooperate…. Looking for relaxing time outside Quote Link to post Share on other sites More sharing options...
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