CINEMA MODS Pentax Super Takumar 50mm f/1.4 lens Declick Deyellow CLA m4/3 adapt

Description

Up for sale is a fully-serviced example of a legendary fast prime lens, the Asahi Pentax Super Takumar 50mm f/1.4, with deyellowing, CLA, and cinema mods!
Known as one of the most beautifully-rendering primes of the 35mm film era, this classic lens has been UV treated to drastically decrease the Thorium yellowing that often affects this lens, resulting in more accurate color rendition and an ~ 2/3 stop increase in light transmission, and it has been disassembled and had its click-detent removed to allow for smooth aperture transitions when using the lens for cinema/video.
Lens is in beautiful vintage condition with light handling wear only, excellent mechanics, and glass free of scratches, haze, and fungus.
Additionally, has been completely disassembled and CLAed (Cleaned/Lubed/Adjusted), with aperture cleaning and total helical cleaning/relube for silky smooth focusing.
Includes original Front Cap and m42 rear cap!
This lens features the extremely versatile Pentax/Praktica m42 screw mount, which is adaptable to almost any digital format, including Nikon, Canon EF, m4/3, Sony A7/Nex, and m4/3 through the use of inexpensive adapter rings.
CLA FAQ
Q: What  services do you perform on the lens before sale?
With the lens disassembled, I perform a full CLA (Clean Lube Adjust). This entails cleaning out any internal and external soiling, cleaning aperture blades of grease that can slowing, re-lubing the focus helical (even seemingly fine "mint" vintage lenses typically have grit and degraded grease in their helicals), and adjusting all components for tightness and accuracy. Where there is extensive dust or internal lens soiling, I will disassemble lens cells and clean off surfaces; however, it is my general philosophy to keep lens elements in their factory position when at all possible to ensure optimum performance.
Q: DUST? What do you mean DUST?
A:
All
vintage lenses have dust in them. In fact, they had dust in them when they were brand new from the factory!
This is because prior to the advent of very modern sealed designs, lenses were not put together in a clean room environment, and the natural static charge of the glass tends to attract dust particles. Coupled with the open designs used in these lenses, it is virtually impossible to find any vintage lens without some degree of dust particles visible when you look closely through the lens. All of my CLA lenses have at minimum the exterior internal cell surfaces wiped with a dust-free, lab-grade optical tissue and then blown off with an air bulb prior to reassembly and thus have a significantly below average amount of dust for a vintage lens.
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