Mamiya 645 Full Set - With Speedbooster | True Lens Services repair, service and test film and video lenses. Lens engineers who are specialists in all aspects of precision engineering

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Mamiya 645 Full Set - With Speedbooster

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Mamiya 645 Full Set - With Speedbooster

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Mamiya 645 with Speedbooster 8-Lens Set:

19mm T3 N (35mm with Zunow adapter)
25mm T2.8 N
32mm T2.3 N
39mm T2.3 N
50mm T2.3 E
57mm T1.6 N
78mm T2.3 N
107mm T2.3 A

Looking for a single lens? Reach out to explore your options!

Experience the unparalleled performance of the Mamiya 645 Sekor C series, now expertly rehoused with a built-in speed booster for your convenience. Originally designed to cover an impressive 6cm x 4.5cm film area, these lenses effortlessly handle the demands of cutting-edge technology.

Thanks to the built-in speed booster, these lenses maintain compatibility with all full-frame sensors, including LF open gate, while delivering an added advantage: a full stop increase in lens speed. Get ready to elevate your cinematic vision with lenses that offer unmatched versatility, stunning coverage, and enhanced performance.

Key Benefits

*The removable speedbooster requires a kit at an additional cost.

Mamiya 645 with Speedbooster Lenses Specification

Focal Length (mm)	19			25			32			39			50			57			78			107
Mount	PL/LPL			PL/LPL			PL/LPL			PL/LPL			PL/LPL			PL/LPL			PL/LPL			PL/LPL
T-Stop	T3			2.8			2.3			2.3			2.3			1.6			2.3			2.3
Min. Object Distance typ. (ft)	11"			12"			14"			16"			21"			2'1"			3'7"			3'9"
Ø Image Circle Across T-stop	T3	T8	T22	T2.8	T8	T22	T2.3	T8	T22	T2.3	T8	T22	T2.3	T8	T22	T1.6	T8	T22	T2.3	T8	T22	T2.3	T8	T22
Ø Image Circle - Close Focus (mm)	56	56	56	57	57	56	55	55	53	56	54	51	51	51	48	54	47	47	53	49	47	53	48	46
Ø Image Circle - Infinity (mm)	50	50	48	53	53	51	54	55	54	58	58	58	54	54	53	53	51	51	56	54	51	55	55	48
Front Diameter (mm)	143			95			95			95			95			95			95			95
Total Length (mm)*	138			94			103			94			94			94			94			151.1
Total Length (inches)*	5.43"			3.7"			4.1"			3.7"			3.7"			3.7"			3.7"			5.9"

* Total approximate length is measured from the flange to the front of lens

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Designed for the future

The Mamiya 645 rehousing offers a hidden advantage: the built-in speed booster is removable. With basic tools, users can detach it, allowing the lens to cover even larger future sensors, please note that TLS can provide this kit but at an additional cost. For accuracy, TLS can provide updated covers with corrected focal length, T-stop, and an iris gear without the booster. These parts are easily interchanged, though TLS would need the lens to mark up the new iris scale unless it was ordered at the same time as the rehousing process.

Gallery

These stills were taken when filming a commercial for Pilot Travel Centers, in Albuquerque, New Mexico. The commercial was shot on a Sony Venice in 6K Raw with the Mamiya 645 speed boosted lenses.

Images were kindly provided by Nathan Thompson DOP.