mole73 Posted March 29, 2021 Share #1081 Posted March 29, 2021 Advertisement (gone after registration) Shrine 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! 3 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/279589-thambar-crazy/?do=findComment&comment=4170468'>More sharing options...
Advertisement Posted March 29, 2021 Posted March 29, 2021 Hi mole73, Take a look here Thambar-Crazy. I'm sure you'll find what you were looking for!
Ernest Posted March 29, 2021 Share #1082 Posted March 29, 2021 Most Common M-A Thambar-M CS & APO 50 ADOX Color Implosion Oops, forgive the donut. 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! 7 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/279589-thambar-crazy/?do=findComment&comment=4170562'>More sharing options...
Wonzo Posted April 3, 2021 Share #1083 Posted April 3, 2021 Magnolia Flower f/3.4 SL2-S 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! 10 1 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/279589-thambar-crazy/?do=findComment&comment=4173646'>More sharing options...
cpyu Posted April 4, 2021 Share #1084 Posted April 4, 2021 New Thambar trial run. 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! 13 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/279589-thambar-crazy/?do=findComment&comment=4173849'>More sharing options...
cpyu Posted April 4, 2021 Share #1085 Posted April 4, 2021 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! 6 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/279589-thambar-crazy/?do=findComment&comment=4173850'>More sharing options...
cpyu Posted April 4, 2021 Share #1086 Posted April 4, 2021 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! 10 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/279589-thambar-crazy/?do=findComment&comment=4173852'>More sharing options...
Wonzo Posted April 7, 2021 Share #1087 Posted April 7, 2021 Advertisement (gone after registration) M10 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! 15 1 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/279589-thambar-crazy/?do=findComment&comment=4176174'>More sharing options...
ivohula Posted April 9, 2021 Share #1088 Posted April 9, 2021 I really like the rendering of this lens in some situations but not in others. The donuts are distracting, and I am being polite here. I have contemplated buying this lens as nowhere in Canada can I try this lens before I buy. I have one question about the donuts. Are the donuts an effect of the centre spot filter, or do you get donuts without the filter as well? To me it appears that the donuts are a product of the light rays excessively bouncing around in the lens barrel before hitting the sensor. Link to post Share on other sites More sharing options...
brunner Posted April 9, 2021 Share #1089 Posted April 9, 2021 vor 20 Minuten schrieb ivohula: I really like the rendering of this lens in some situations but not in others. The donuts are distracting, and I am being polite here. I have contemplated buying this lens as nowhere in Canada can I try this lens before I buy. I have one question about the donuts. Are the donuts an effect of the centre spot filter, or do you get donuts without the filter as well? To me it appears that the donuts are a product of the light rays excessively bouncing around in the lens barrel before hitting the sensor. While testing the Thambar without the filter, the special bokeh/sonut rings where there also. And I feel the same: For some photos it works great, for others not really... Link to post Share on other sites More sharing options...
ivohula Posted April 9, 2021 Share #1090 Posted April 9, 2021 It appears to be some kind of flare produced by the lens elements when they are struck at a particular angle with a much brighter intensity. Looking at posts 1083, 1084 & 1086, it is distracting from the main picture element, which I assume is the flower. As our eyes are drawn to the brightest part of the frame, the donuts distract the eye. The donuts take over the composition and the donuts become THE composition. Link to post Share on other sites More sharing options...
Wonzo Posted April 11, 2021 Share #1091 Posted April 11, 2021 Am 9.4.2021 um 20:57 schrieb ivohula: I really like the rendering of this lens in some situations but not in others. The donuts are distracting, and I am being polite here. I have contemplated buying this lens as nowhere in Canada can I try this lens before I buy. I have one question about the donuts. Are the donuts an effect of the centre spot filter, or do you get donuts without the filter as well? To me it appears that the donuts are a product of the light rays excessively bouncing around in the lens barrel before hitting the sensor. Indeed the Thambar is a very special lens and very challenging in it`s use. The donuts you`re asking for are the same when using the centre spot filter. The filter produces an even softer image, as the centre is covered. The donuts appear, the more light or reflections come into the lens, which can underline your composition, but which can also distract it seriously. The donuts are very soft wide open and the more you stop down, the more pronounced they are. After passing f/6.3 the donuts disappear and the lens behaves like a completely normal 90mm lens and the results are absolutely sharp and contrasty. For composition purposes it makes sense to use an EVF, which enables you to see, what you get. Using a rangefinder without EVF creates room for surprises ... :-) Link to post Share on other sites More sharing options...
brunner Posted April 11, 2021 Share #1092 Posted April 11, 2021 Zurich Bahnhofstrasse 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! 4 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/279589-thambar-crazy/?do=findComment&comment=4179344'>More sharing options...
ivohula Posted April 13, 2021 Share #1093 Posted April 13, 2021 I have been digging into the donut bokeh of this lens and found this interesting article: https://www.bhphotovideo.com/explora/photography/tips-and-solutions/understanding-bokeh About half-way through the article there is an interesting discussion about spherical aberration (SA) effecting bokeh. It concludes that "donuts" like those in the Thambar lens are produced by over correction of SA at certain focusing distances (the donuts or soap bubbles)and under-corrected bokeh at other distances (misty perfection). It says: "The rub with SA is that, if you under-correct or over-correct it, you will get the opposite light distribution effect before and after the focus point. Therefore, an over-corrected lens that causes the soap-bubble bokeh in the background will have foreground-out-of-focus areas with a concentration of light in the center of the discs, and vice versa for under-corrected aberrations. If you read other articles on bokeh, you may find that this is another area where opinion on bokeh gets thrown into the mix. The popular stance is that bokeh with bright edges is poor, bokeh with a bright center is wonderful, and neutral bokeh shading from lenses with corrected SA is, well, neutral. Again, this is just someone’s opinion. Some photographers crave the soap-bubble bokeh effect in their images. In fact, some lenses, such as the Meyer-Optik-Gorlitz Trioplan 100mm f/2.8, are known for creating the effect. Other photographers detest the bubbles. And, as mentioned above, soap bubbles in the background means Gaussian discs in the foreground, so you need to prepare yourself for both types of out-of-focus regions if the lens is not fully corrected." Hence not only is aperture size a determinant of the bokeh, but so is focusing distance. 3 Link to post Share on other sites More sharing options...
Popular Post reinerv Posted April 27, 2021 Popular Post Share #1094 Posted April 27, 2021 M240, CSF 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! 21 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/279589-thambar-crazy/?do=findComment&comment=4189562'>More sharing options...
Atragon Posted June 15, 2021 Share #1095 Posted June 15, 2021 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! 6 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/279589-thambar-crazy/?do=findComment&comment=4220484'>More sharing options...
Atragon Posted June 15, 2021 Share #1096 Posted June 15, 2021 (edited) Squirrel in Regents Park (London) Thambar 90 - unedited shot, gives sense of motion 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 June 15, 2021 by Atragon 3 1 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/279589-thambar-crazy/?do=findComment&comment=4220686'>More sharing options...
ianman Posted June 30, 2021 Share #1097 Posted June 30, 2021 Took the old girl out for a walk today. M9, 1935 Thambar LTM 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! 8 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/279589-thambar-crazy/?do=findComment&comment=4229151'>More sharing options...
pedaes Posted June 30, 2021 Share #1098 Posted June 30, 2021 6 minutes ago, ianman said: Took the old girl out for a walk today. See you took the Thambar as well! Lovely! 2 Link to post Share on other sites More sharing options...
ianman Posted June 30, 2021 Share #1099 Posted June 30, 2021 24 minutes ago, pedaes said: See you took the Thambar as well! Lovely! Thank you... I'll not repeat what you wrote to the other half I found an incredibly beautiful spot today. I have an idea for a few photos I want to try there. Amazingly, it's litteraly 5 minutes from my house and I never even knew it existed before. 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! 9 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/279589-thambar-crazy/?do=findComment&comment=4229179'>More sharing options...
pedaes Posted June 30, 2021 Share #1100 Posted June 30, 2021 1 minute ago, ianman said: I'll not repeat what you wrote to the other half Phew - thanks! 1 Link to post Share on other sites More sharing options...
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