TLS Mamiya 645 Image Circles & Sensor Coverage

Learn about the coverage of the TLS Mamiya 645 lenses of ARRI LF open gate, 4.3K LF 16:9, 3.8K LF 16:9, S35 open gate and Alexa Mini 3.2K formats.

Ben Bateman

Updated June 19, 2024

·

2 min read

See the video below for ARRI format coverage of each lens in our TLS Mamiya 645 lens set.

Every Mamiya lens has an image circle large enough to easily cover the full LF open gate format (which needs an image circle of at least 44.71mm diameter for full coverage), so you won't see any portholing or heavy vignetting here. The point of the video is therefore to show you the falloff character of each lens for each of the formats we are looking at.

The table below summarises coverage of the lenses in our set.

TLS Mamiya 645 Image Circles & Format Coverage
Focal Length Image Circle LF Open Gate 4.3K LF 16:9 3.8K LF 16:9 S35 Open Gate

25mm

>55mm

Yes

Yes

Yes

Yes

32mm

>55mm

Yes

Yes

Yes

Yes

39mm

>55mm

Yes

Yes

Yes

Yes

50mm

>55mm

Yes

Yes

Yes

Yes

57mm

>55mm

Yes

Yes

Yes

Yes

78mm

>55mm

Yes

Yes

Yes

Yes

107mm

>55mm

Yes

Yes

Yes

Yes

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