enboe Posted December 25, 2017 Share #1 Posted December 25, 2017 (edited) Advertisement (gone after registration) A good Christmas Day morning to you all. I thought I would share a little on the new Thambar, plus a contemporary 1933 Elmar 90 as well. As the Thambar requires some image size, I will post this as a series of images in subsequent posts. Hopefully this is allowable by forum rules. Background data: new Thambar, 1933 Elmar, M10 on auto ISO capped at 6400, auto shutter speed, classic metering, auto white balance. Sherman Library botanical gardens in Corona Del Mar, CA. Straight exports from DNG to JPG using Lightroom 6.14, no tweaks. All ten-shot series attached used the marked f/stop sets on the lens (2.2/2.3, 2.4/2.5, 2.6/2.8, 3.2, 4.5, 6.3, 9, 12.5, 18, 25). The umbrella series included one shot at f/4 for comparison with the Elmar. All Thambar shots taken without the central spot filter. All shots handheld. Focusing was via the rangefinder only, no live view. Ask if I have left out pertinent setup details and I will try to answer. The Thambar is an interesting design and photographic tool for the kit. In mathematical terms, you can thing of it as the convolution of a point source image into a spherical shape with all of the points in your image. The radius of the sphere is also a function of the distance from the plane of focus, which is why this effect cannot be reproduced with a simple Photoshop large-radius averaging filter. Visually, I would provide the four following images of lights, i.e. point sources, taken at the first four f/stop settings on the lens, f/2.2 through f/3.2. You will see a spherical bleeding of the point source lights of decreasing radius as you stop down. While this is most obvious for the lights, you should remember the same spherical bleed-over is occurring for every point in the image, hence the soft focus effect and glow around subject edges. The great news is that the effect is fully user-controllable, and the modern M240/M246 and M10 with live view allow for the photographer to dial in the amount of effect they want. Someday I need to post a video of this as well. Images 1-4: Thambar at f/2.2 through f/3.2. Edited December 25, 2017 by enboe 1 Link to post Share on other sites More sharing options...
Advertisement Posted December 25, 2017 Posted December 25, 2017 Hi enboe, Take a look here Thambar and 1933 Elmar experiments. I'm sure you'll find what you were looking for!
enboe Posted December 25, 2017 Author Share #2 Posted December 25, 2017 #1 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425344'>More sharing options...
enboe Posted December 25, 2017 Author Share #3 Posted December 25, 2017 #2 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425345'>More sharing options...
enboe Posted December 25, 2017 Author Share #4 Posted December 25, 2017 #3 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425347'>More sharing options...
enboe Posted December 25, 2017 Author Share #5 Posted December 25, 2017 #4 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425348'>More sharing options...
enboe Posted December 25, 2017 Author Share #6 Posted December 25, 2017 Next, I would like to offer up a series of shots at all ten marked settings on the lens, in sequence, of course. The key thing to keep in mind here is you need to have a subject with some depth to the background. Shooting flat scenes is very unsatisfying, as the lens doesn’t have the required physical distance to set up the bokeh effect to the background. Images 5-14: Thambar at f/2.2 through f/25. Link to post Share on other sites More sharing options...
enboe Posted December 25, 2017 Author Share #7 Posted December 25, 2017 Advertisement (gone after registration) #5 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425351'>More sharing options...
enboe Posted December 25, 2017 Author Share #8 Posted December 25, 2017 #6 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425353'>More sharing options...
enboe Posted December 25, 2017 Author Share #9 Posted December 25, 2017 #7 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425354'>More sharing options...
enboe Posted December 25, 2017 Author Share #10 Posted December 25, 2017 #8 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425355'>More sharing options...
enboe Posted December 25, 2017 Author Share #11 Posted December 25, 2017 #9 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425356'>More sharing options...
enboe Posted December 25, 2017 Author Share #12 Posted December 25, 2017 #10 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425358'>More sharing options...
enboe Posted December 25, 2017 Author Share #13 Posted December 25, 2017 #11 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425359'>More sharing options...
enboe Posted December 25, 2017 Author Share #14 Posted December 25, 2017 #12 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425361'>More sharing options...
enboe Posted December 25, 2017 Author Share #15 Posted December 25, 2017 #13 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425362'>More sharing options...
enboe Posted December 25, 2017 Author Share #16 Posted December 25, 2017 #14 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425363'>More sharing options...
enboe Posted December 25, 2017 Author Share #17 Posted December 25, 2017 Next, I would like to show a comparison image at f/4 between the Thambar and a 1933 Elmar. The Elmar is an excellent performer for a design approaching 100 years old! Images 15-16: Thambar and Elmar at f/4. Link to post Share on other sites More sharing options...
enboe Posted December 25, 2017 Author Share #18 Posted December 25, 2017 #15 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425365'>More sharing options...
enboe Posted December 25, 2017 Author Share #19 Posted December 25, 2017 #16 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! 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/280211-thambar-and-1933-elmar-experiments/?do=findComment&comment=3425366'>More sharing options...
enboe Posted December 25, 2017 Author Share #20 Posted December 25, 2017 Finally, I would offer up two favorites from the day, the first from the Thambar at f/2.2 and the second from the Elmar at f/8. Glow and sharpness, defined by the lens selected. Image 17: Thambar at f/2.2 Image 18: Elmar at f/8 I hope this was useful, and happily accept questions and courteous comments. Eric Link to post Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now