lost cat Posted February 6, 2016 Share Posted February 6, 2016 In our collective neverending quest for yet more UV capable lenses I present to you a photo comparison of a Prinzgalaxy 35mm f/3.5 lens vs a Soligor 35mm f/3.5 KA Kuri clone Soligor:http://m42lens.com/m...5mm-f-3-5-22-v2 Prinzgalaxy:http://m42lens.com/m...y-35mm-f-3-5-16 Camera: Unmodified Nikon D40. Lens Configuration: Macro configuration with an additional helicoid and/or short extension tubes to try to normalize the subject to camera distance as much as possible. White balance: All photos were white balanced against a slightly defocused PFTE tape wrapped block of wood with at least three layers of tape. Visible shots with an exposure of 1/30s UV shots with an exposure of 1/8 sec. Note - the WB was performed using the in-camera "use photo" function. although no error message was generated it does not appear to have worked properly. Illumination: Visible images taken with two 25W incandescent bulbs with reflectors 22 and 26cm distance from subject +/- 45 degrees from camera-to-subject plane. UV images as above but with incandescent bulbs replaced with two 26W CFL blacklight blue bulbs. ISO: 400 for all imaging Aperture: f/8 for all imaging Shutter speed(s): 1/30s for Vis images, 1/8s-30s for UV Distance to subject: 15 cm for both lenses (flower to camera body) UV Filter: Front mounted Astrodon "U" 1.25" Mounts: Both lenses have a T mount Filters: Prinzgalaxy uses a 52mm filter Soligor uses a 46mm filter Left/Top: Prinzgalaxy Right/Bottom: Soligor-------------------------------------------------------Visible 1/30s: UV 1/8s: UV 1/4s: UV 1/2s: UV 1s: UV 2s: UV 4s: UV 8s: UV 15s: UV 30s: To my eyes the performance of the Prinzgalaxy- at least under my testing methodology - is maybe 1 stop less than the Soligor KA . Both these lenses are already on the list so I am adding this post to provide a metric. Link to comment
lost cat Posted February 10, 2016 Author Share Posted February 10, 2016 Here is a couple of of likely clones to this Prinzgalaxy lens: Photax 35mm f/3.5-16http://m42lens.com/m42-lens-database/291-photax-35mm-f-3-5-16 Access SQ 35mm f/3.5-16http://m42lens.com/m42-lens-database/486-access-sq-35mm-f-3-5-16 Link to comment
Alex H Posted February 11, 2016 Share Posted February 11, 2016 Can there be such a thing as "likely clones" - the therm "clone" described an object that is in all aspects identical to an original... Link to comment
lost cat Posted February 11, 2016 Author Share Posted February 11, 2016 Can there be such a thing as "likely clones" - the therm "clone" described an object that is in all aspects identical to an original... "Likely " depends on whether the other lenses are clones or doppelgangers. Link to comment
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