Jump to content

JohnBarlow

Members
 View Profile  See their activity

  • Posts

    642

  • Joined

  • Last visited

 Content Type 

Everything posted by JohnBarlow

  1. JohnBarlow
    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 the dispersion of the imaging rays to give much improved close focusing capability. Rectilux does the same thing but manually as detailed below. As you know Rectilux 3FF-W will focus from 0.6m to infinity when the anamorphic and taking lenses are simultaneously set to infinity. Call this configuration ‘INF-INF’ Now say you are on set and the shot list says you don’t need to focus on anything beyond 5m. Just set your anamorphic and taking lenses simultaneously to 5m. Call this configuration ‘5-5’. Thus 5m is the new infinity and means that you can shoot from 5m down to much closer than 0.6m (I will leave you to do the calculation) and the close shots will be much crisper than the configuration ‘INF-INF’. Of course the whole stroke is available to you, so much precise focus is easily obtained. Now say you have a romantic candlelit dinner scene. You want lots of bokeh and also want to use it to blot out background distractions. Storyboard calls for reverse head shots and you tell your AC to configure Rectilux to ‘2-2’, meaning set the anamorphic and taking lenses simultaneously to 2m, so now 2m is the new infinity and gives you very close focus capability, so that when the guy proposes and puts the engagement ring on his GFs finger you are there to scoop it up, filling the frame with this shot. I suspect now you will come to realise the additional advantage of the quick change system, enabling you or your AC, to quickly remove the scope and set it to the desired ‘X-X’ configuration and put it back ready to shoot.
  2. JohnBarlow
    Rectilux is coming !!!
  3. JohnBarlow
    ​Rudolf agreed, the weather in N. Europe is miserable at the moment. Best to wait for the sunshine
  4. JohnBarlow
    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...
  5. JohnBarlow
    ​Hi Oz as Tito and Zak said...
  6. JohnBarlow
    ​Hi Rudolf, If you can swing it and at least get the Patent reference numbers that would be great, actual documents would be Faboo!
  7. JohnBarlow
    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.
  8. JohnBarlow
    ​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, this function goes out the window. ​My focus is on Rectilux, Stu, what happens to other products is not my concern. ​Thanks and you will, birds in flight
  9. JohnBarlow
    ​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 please share your Vimeo or You Tube account so I can see some examples of what you mean?
  10. JohnBarlow
    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. ​
  11. JohnBarlow
    5 DAYS TO GO! The lightweight 3FF series truly are weapons oFMass destruction.
  12. JohnBarlow
    ​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 my products do as standard, to completely avoid issues like ghosts and internal reflections in contra lighting conditions.
  13. JohnBarlow
    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 elements are made and combined, that does." Those who have been following the development of Rectilux, the original single focus attachment for anamorphic projection lenses, will know that this statement is in perfect harmony with Rectilux design philosophy and manufacturing processes. Consequently, I truly believe that the only available single focus attachment which is capable of unleashing the performance of this remarkable optic is the one you see here. The introductory offer for batch 1 Rectilux 3FF-W will close on February 10 2015. If you want a Rectilux 3FF-W quickly, don't forget the bus will leave on this date.
  14. JohnBarlow
    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.
  15. JohnBarlow
    @proctor you can find the sketch here http://www.transferconvert.co.uk/cinemania/HOW SINGLE FOCUS ANAMORPHIC ATTACHMENTS WORK.pdf best
  16. JohnBarlow
    More news from Rectilux… The pre-production check with the CAD files is now complete, and passed with flying colours. The agency images that I have been displaying are from the solid model CAD files which have been sent to the precision engineers and converted to machine specific instructions. In modern CNC systems, end-to-end component design is highly automated using computer-aided design (CAD) and computer-aided manufacturing (CAM) programs. The programs produce a computer file that is interpreted to extract the commands needed to operate a particular machine via a post processor, and then loaded into the CNC machines for production. Read more about CNC here To demonstrate this I have uploaded the focus ring from a Rectilux 3FF-S to Shapeways and this also passed all their checks. It is available for sale in solid 18 karat gold. If you want to buy it now go here Of course this will make the ultra-light Rectilux 3FF-S rather heavy and expensive, so only rich kids will be tempted I suppose. Together with the Bolex Body Glove coupling rings for the Bolex 8/19/1.5x, this agency image is how it will look Rectilux 3FF series can also be used to focus spherical projection lenses as well as anamorphic projection lenses. There are now 13 different anamorphic lenses supported by the Rectilux 3FF series quick change system, making it the most versatile precision shooting instrument available today, appealing to a wide market and thus securing its resale value. The Rectilux 3FF series quick change system, offers less than a one minute swap out in the field for aesthetic reasons such as looks and flares. For example with the 3FF-W model, a shooter can catch the sunrise with a Bolex 16/32, then during the day use a Schneider ES Cinelux (the wide version), then golden hour and indoor shooting with a Kowa BH which has the widest FOV of all projection anamorphics, then sunset and night time in bars and cafes with the Chretien HyperGonar 16. Several customers have requested all black and so here is the En Noir range.
  17. JohnBarlow
    ​Bruno, "honi soit qui mal y pense" is the motto under the two lion crest of the UK MOD. It is perfectly normal to be asked about security clearance in professional circles. Business discussions at the website please, as I have stated in my first post in this thread. I will quickly add here, that I have two systems in place for card payments It is also a legal requirement in distance selling to provide an address. I fully comply with the law.
  18. JohnBarlow
    ​My preference is to keep this thread going as it is a true reflection and historical document of the mature product development life cycle of Rectilux. My content matches with the same identical threads on other forums. There is no need for fragmentation. One thread says it all Regarding anti trust issues alluded to , the ordering process has a clear statement on this as follows: " Order with Confidence I am devoted to excellence in customer service. At all times, customers are dealing with a real person with a real address, you can check where I am based and I even provide you with a Google map to help you locate me, on the website. I also hold security clearance for the UK Ministry of Defence and have been trusted with sensitive information by British and American defence agencies. I am perfectly happy for you to do your own checks, through land registry, electoral register and also credit checks and the law. On personal request, I can provide a bank reference from my business bank manager. When you order a Rectilux you will get a Rectilux as described and that is guaranteed. John Barlow, January 2015"
  19. JohnBarlow
  20. JohnBarlow
    No threads were closed, Procter
  21. JohnBarlow
    ​oh Kado, Forgot to mention that the images show the Body Gloves in raw aluminium. They will of course be anodized black in keeping with the Rectilux colour scheme. I have also given a nod to the original Kern Paillard Swiss design by including the distinguishing chamfer feature on the back ring, just so people will know what you have under the hood. I will also take this opportunity of thanking the many people from around the world who took time to provide me with accurate measurement data for the Bolexs. You all know who you are and I must say thank you once again. There were a few who took the trouble to purchase a measurement calliper to do this and I have to say that I am most impressed.
  22. JohnBarlow
    Hi ​Kado, Your timing couldnt be better. Please find below the Body Glove solutions for the Bolex 8/19 and Bolex 16/32 anamorphics, for Rectilux 3FF-S and Rectilux 3FF-W. The images show front and reverse views of the 2 ring coupling solution, the front ring screws into the Bolex filter thread and has an external thread that enables the Bolex to be screwed inside Rectilux, closely mating with the optics and ensuring high centricity with the optical axis. Then the second ring slips over the back of the Bolex and is clamped by the Rectilux, providing a totally enclosed Body Glove. Rear filter size is 49mm in each version. Now you can stretch your imagination 3/2x !
  23. JohnBarlow
    ​Welcome to Rectilux Vincent !
  24. JohnBarlow
    Pre amble As you all know, the Schneider Cinelux anamorphic is a 2x CinemaScope consisting of 4 glass elements in a 2 group configuration, in optical shorthand 4e/2g, using some exotic glass like Schott SF55 and such. It is primarily designed for flat-projection spherical taking lenses. Currently the only significant support for the single focus 1.5x aesthetic is wholly owned by the Iscoramas, although Rectilux will support the 1.5x Bolex/Mollers, shortly. Description However, sitting on a computer in my design office is a computation for a 1.5x Cinelux..... The 1.5x Cinelux requires optics to be fabricated to perform this feat of engineering and will be rehoused in a smaller casing approximately 2/3 length from 105mm, the current length at infinity focus. Pricing I have run the numbers and I can give an approximate pricing based on a 50 customer payload. Price is 300-350 GBP and of course you will need to purchase a Cinelux 2x as a donar lens. It will be a self assembly deal. My responsibility will be to provide interested parties with the housings, additional optics, mountings and assembly guides. The 'MiniLux' as i refer to it, will be compatible with Rectilux 3FF-W, single focus attachment as standard. The extra shortness and lightweightedness is of course a bonus. If you are interested, please register your interest below or via this email, john@transferconvert.co.uk best
  25. JohnBarlow
    @Caleb Genheimer When referring to Rectilux products please make sure you provide correct and accurate information. Correct and accurate information is contained in this brochure download thanks, John
×
×
  • Create New...