Rathenower Rectimascop 48 for Rectilux
Ever since having ordered the Rectilux I thought about fitting the Rathenower Rectimascop.
John Borlow has also created some Rehousing Sabots, which are now on preorder. I am happy to help out putting everything together, in case you need assistance.
It took some time, measurements, tests and patience to bring this together. Now I want to present a DIY Kit as the first step towards a possibility to get an amazing sharp scope fitted into the Rectilux.
The goals were:
- least destructive
- infinity only
- fast & easy adjustable
- flexible - for the creative people
- inside rectilux, behaving like a Kowa B&H
- cool looking footage
Basically I disassembled the front and back elements. By using a lathe, I machined the front part down and added a thread, exact dimensions like it is found on the front of the Kowa B&H. After this, the Kowa front coupling fits. Connection done! The next Version will get a Cinelux front fit as it will be more flexible in terms of distance to the first lens.
The Prototype Rathenower Rectilmascope front element.
At he back of the front Element, I added 62-67mm Step up and 67-62mm Step Down Rings to reach the right length. Happy ending is a 62-58mm step down ring where the back end of the scope screws in. The alignment and perfect infinity distance can now be dialed in by screwing in/out the back element. Just use another 62-58mm step down ring as counter lock at the right position.
Why use Step Rings?
- quick protoyping
- fit Filters inside scope!
It fits the Rectilux as a hand the inside of a motorman's glove!
The following shots are with a working rehouse for the Rectimascop which fits in lenth, but not anodyzed. Due to that there are internal reflections. Due to this, the Images are very flarry & low contrast.
The steps are:
- get the right tools.
- Rectimascop disassembly (this is the greasy part...)
- machine a custom front coupling + holes & threads & grub screws
- Rectimascop Front machining & degreasing / cleaning
- machine the rehouse
- assemble & adjust
Front Coupling and Front Element
A handheld shot with the final product at 200mm f5.6 on GH4