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About JohnBarlow

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  1. FLOATING ZONE FOCUS EXPLAINED Nikon calls this Close Range Correction and Canon calls it Floating Element, so for the sake of accuracy Rectilux calls it Floating Zone Focus. Back in the day, when lenses were focused by moving the whole cell forward and back from the film plane, it was noticed that when close focused, the image quality suffered. For example, it is usually found that say a vintage 135mm lens would typically be limited to 1.5m close focus for this reason. Nikon found that by shuffling the distance between lens elements, using a mechanical cam system that they could tighten up t
  2. Here we have a superimposed 2D cartoon/xray section of the inside of Rectilux 3FF-W, Rectilux 3FF-S is similar. The point of showing this, is that 3FF series come with quick change coupling rings that when fixed to the scopes allow easy screw in at the mating thread 1 and also further supported at the rear 2 by three bolts which pass through the casing , through the rear coupling ring and onto the scope. This guarantees <0.1mm centricity with the optical axis, every time you swap over scopes for different looks. A simple yet nevertheless elegant engineering solution...
  3. Rudolf, The special quality of Moller is there to be seen. Incidentally, I contacted Moller Wedel about two years ago, maybe 3 or 4 times by email, to discuss the expired patents on their old products, but I never got a response. I was thinking of remaking them, with their blessing of course. Maybe a bit bigger for faster taking lenses. I could separate the glass in one but I hate to butcher vintage lenses.
  4. ​Yes Stu, Form, fit and function from design through to final product. There is no need to remove the focus ring from your anamorphic lens, and besides, it is imperative that this is not done, for how else can the minute adjustments be made for precise infinity focus? You will see from the brochure that Rectilux 3FF series also feature infinity adjustment screws because every designer would know that some scope/ taking lens combinations can experience changes to the back focus during close focusing. In short Rectilux can be tuned to your favourite lenses. Without the anamorphic focus ring,
  5. ​I have never considered a Moller 32 to be an underrated adapter, I think all Moller scopes are excellent. Do you remember I helped you solve your filter problem you had with your 32 Rudolf? How is that working out for you? ​Rudolf, I think you are in the wrong thread, 3FF-S is not heavy, requires no rails, no sticks and no sidewalk permit and you can swap out the 32 to the 8/19 in less than a minute using the quick change system ​Please show me how you rack focus with the double focus Moller Rudolf. I like to learn new tricks. Rudolf, earlier you spoke about interesting footage, can you
  6. More news from Rectilux... The Carl Zeiss Rathenower 48/2x will be added to the list of 3FF-W supported scopes in the spring, bringing the total of precision support for scopes to 8 including all the minor variations. More details to come 4 DAYS TO GO! The lightweight 3FF series truly are weapons oFMass destruction. ​
  7. ​Hi Oz, The firm introductory prices are found in this download brochure ​: http://www.transferconvert.co.uk/cinemania/Rectilux3FFBrochureV2.pdf Bolex body glove prices are the same. The Bolex body glove is proving to be very popular. The hooded Cinelux would need to be modded to remove the hood and for reasons stated in the Schneider brochure above, I am advising my customers to swap out to the ES version as the cost would be less and you end up with a much better optic which has extra 15% FOV, and they are happy to do this. Its all about getting close to the focusing optics, which all
  8. More News from Rectilux... For information I have made available for download, the Schneider Kreuznach brochure on the ES Cinelux Anamorphic 2X MC that I have kept in my archives from the period here: http://www.transferconvert.co.uk/cinemania/ESanamorpH.pdf The brochure has a paragraph as follows: "The performance of any lens is determined by the type and quality of the glass used, the elegance of the lens design, and the quality control and skill used in the manufacturing process. The number of elements in a lens design doesn't determine lens quality or performance, it's how well these el
  9. The earlier post on the focusing performance was mistakenly quoted for the Version 1 product. Version 2 of Rectilux 3FF-W is as follows: 3FF-W has a Focus throw of 170 degrees (less than 1/2 a turn) from 0.6m to infinity, the stroke is 21mm from 0.6m to infinity One third of the above is devoted to the close range 0.6m to 1m, which means that the Focus throw is 117 degrees (less than 1/3 turn) from 1m to infinity, the stroke is 14mm from 1m to infinity.
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