“The performance of Carl Zeiss: Super Tele lenses and Digiscoping up to 1620 mm on the X-Pro1” by Jan Vogelaar
This friday the X-pert corner article is replaced by a Jan Vogelaar review. Please continue to support Rico’s great work and purchase his book “Mastering the FUJIFILM X-Pro1” (Kindle Edition) (Apple iBook Store) (German version)”.
A review by Jan Vogelaar (author of various books like “Contarex, Contax G & Leica M Lenses Guide to Digital Imaging on the Fujifilm X-Pro1” [ebay (click here) or at camerabooks (click here)]
The development of photographic tele-lenses cannot be complete without Carl Zeiss AG. Today we speak about digiscoping on digital camera’s, however do you know, even the word “digiscoping” did not exist, but Carl Zeiss already in the nineteen fifties offered the solution for connecting and using a monocular on a photo camera. The longest tele-lens Zeiss offered as early as 1958 was the 4.0/250 mm Sonnar. The mounting of an 8 x 30 B monocular on the Contarex camera and lenses was offered in 1960 and creates with the 4.0/135 mm Sonnar a 1080 mm tele.
The Camera
The Fujinon XF lenses are newly designed for the APS C sensor. Al other lenses in my book however are originally designed for film. Many new lenses for the digital cameras today are a modification of film design lenses.
The scores for the lenses are given on a scale of 1 to 10 for sharpness and brilliance, 10 is best. For Color fringing and color aberration the score is also on a scale of 1 to 10. 10 equals totally absent.
All material is produced in a timespan of about 2 hours and no post-processing for aberrations or sharpness is performed. All files are .jpg from Photoshop and/or the Fuji .jpg in camera engine.
The Fujinon XF lenses are newly designed for the APS C sensor. All other lenses in the book are originally designed for film. Even many new lenses on the digital market today are a modification of film design lenses.
The Monoculars and the Adapters
Zeiss offered in 1960 the 8 x 30 B monocular which was mountable on the 50 mm Contarex Planar & Tessar and on the 4.0/135 mm Sonnar lens by means of a ring (number 20.1633) fitting into the ø 49 mm filter mount and to the monocular with a ø 27 mm thread. Later in 1969 Zeiss introduced a Contarex B56 ring (number 20.1642) fitting on the 8 x 30 B monocular with the same ø 27 mm screw.
For the picture above: The left ring (20.1633) protrudes 7.6 mm into the lens mount and does not touch the front lens of the 4.0/135 mm. However the ring at the right (20.1639) protrudes 9.9 mm into the mount and is not suitable anymore for the 4.0/135 mm. It will hit the front lens! The B 56 ring (20.1642) not pictured here) will fit all Contarex lenses.
In order to show you the shooting point you see here the 50 mm standard lens photograph.
The Contarex Monocular 8 x 30 B combinations in this article
The lens/monocular speed is determined by the monocular front lens diameter only! The distance setting for the camera lens is set at infinity. Focusing for the combination is done with the monocular’s focusing. Of course you will need a tripod, the more weight creates the better stability. For the release it is best to use a cable or the self-timer. Heavy wind or traffic can be quite disturbing, a minimal vibration is noticeable immediately!
Originally in 1960 Zeiss introduced a prism monocular, later the strait type monocular came available. I have tested the Zeiss monocular, but any monocular that mounts well will do the job.
Left to right: the [shoplink 10259]Planar 2.0/50 mm[/shoplink], the Blitz Planar and the 4.0135 Sonnar, all with ring & monocular.
The combination of the Contarex 3.5/115 Tessar on the bellows looks a bit odd but is fine.
The tripod is connected to the bellow’s screw and makes a stable set.
The Contarex mount Sonnar 4.0/250 mm tele-lens results
