Vintage 24" C.P. Goerz AM. OPT. CO. Apochromatic Artar f/12.5

Description: FUTURE LISTING - WORK IN PROGRESS DO NOT BUY THIS!!! GOERZ APO ARTAR 24" RODENSTOCK APO RONAR MC 48⁰ 240MM LENS with retaining ring and lens caps - VERY LIGHTLY USED. A true Apochromat. This is the latest multi-coated version in the all-black Copal B No. 1 shutter. It is rated at 48⁰ of coverage at f/22 with a 212mm image circle and will allow for ample movements for 4x5 at infinity. According to specs. it will JUST COVER 5x7 at infinity. Users report that Rodenstock is conservative in their coverage specs. and that the Ronars actually have greater coverage than stated in the specifications. It is basically an updated Apo Artar with multicoating and a modern shutter, and like all Dialytes the edge resolution begins to fall off before the illumination does. It is up to the user to determine what level of edge sharpness is acceptable.The filter size is 49mm. I purchased this lens in a private sale ~20 years ago, and it's been in storage ever since. I've never used it. It was kept stored in a climate-controlled and smoke-free environment. The front lens cap is original, the rear is an off-brand replacement. Lens serial #: 769515Shutter Serial #: 82186 The lens and shutter are near flawless.There are slight scratches on the side of the rear group barrel.There are no rub marks.There is no "fogging".There is no fungus.There is no separation of cemented elements - because all elements are air-spaced.There are no "cleaning wisps".There is no "Schneideritis".There is no oil on the shutter or iris blades.The coating is flawless.There is no inter-element dust.The iris blades are symmetrical.The shutter intervals sound accurate and consistent. I tested the shutter with my Calumet shutter tester: SEC: MEASURED 1 - 1.03696 / 1.03751 / 1.03244 1/2 - .53759 / .53544 / .53796 1/4 - .23370 / .23096 / .22876 1/8 - .14089 / .14086 / .14082 1/15 - .07294 / .07290 / .07259 1/30 - .03653 / .03640 / .03650 1/60 - .02255 / .02260 / .022621/125 - .01399 / .01401 / .01398 These speeds were all checked at F/11.NOTE: It appears that the shutter does not give a full f/11 with this lens, going by the markings it appears to be f/11+1/3.As is common with mechanical shutters, the fastest 2 speeds are ~1/2 stop slow, every other speed is well within tolerances.The speeds are very consistent - which is what is really important. If you want an excellent used example of this lens... you've found it.You will be hard-pressed to find a cleaner used example of this lens anywhere. My lenses offer "added value". These lenses haven't been produced in 50+ years. This lens has been packed-away in a climate-controlled house in a smoke-free environment for the past 20 years. It hasn't bounced around in a car trunk in 120-degree Arizona summers, been used in a dusty desert or in Florida humidity. I test them with a shutter tester and give the buyer a shutter timing report - no one else does that. That alone is worth 50-$100. And the report is an assurance that a CLA will not be necessary - Carol Miller at Flutot is charging $160 for that these days.U.S. SALES ONLY!WILL BE SHIPPED USPS SIGNATURE REQUIRED!NO P.O. BOXES!I WILL ONLY SHIP DIRECTLY TO THE BUYER.I WILL NOT SHIP TO A 2ND PARTY OR FREIGHT-FORWARDING COMPANY.

Price: 2799.95 USD

Location: Mesa, Arizona

End Time: 2024-08-30T07:00:01.000Z

Shipping Cost: 20 USD