Lens Comparisons

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In these experiments I explore the coverage of different lens-body combinations as well as the zooming effect of the Tachihara.

Content, Forest, Nature, Other, Photography, Plant, Tree, Unsaturated, Wood
Digital 4×5 taken with Tachihara (reference image)

GFX vs. 4×5

Set to about 50mm, the GFX approximates the area covered by the 4×5 with a 150mm lens.

Content, Forest, Nature, Other, Photography, Plant, Tree, Unsaturated, Wood
GFX @50mm (red boundary = 4×5 Tachihara with 150 mm lens)

Leica M10-R vs. 4×5

Using 35mm lens1 on the Leica M-10 approximates the area covered by the 4×5 with a 150mm lens.

Content, Forest, Nature, Other, Photography, Plant, Tree, Unsaturated, Wood
Leica M10-R @35mm (red boundary = 4×5 Tachihara with 150 mm lens)

Using the 4×5 as a Zoom on the GFX

As can be seen in the image below, there is a significant zoom affect using the Tachihara 150mm lens as the lens for the GFX. It appears to be the equivalent of a 300mm lens on the GFX (or a 78mm lens on a full frame camera).

Architecture, Bridge, Content, Forest, Nature, Other, Photography, Plant, Tree, Unsaturated, Wood
Full Image: GFX @100mm; Red: Using the Tachihara as a lens on the GFX

100% Crops

The first image shows the level of detail contained in a digital 4×5. The images following extract a 100% crop of a 4×5, medium format and full frame image. This is another way of seeing the level of detail.

Screen shot of a digital 4×5 portion cropped at 100%. By looking at the thumbnail one can see how large is the original “digital negative”.
  1. Note: In theory a 40mm lens should do the trick, however, in my experiments the crop was close, but incomplete, so I chose to work with a 35mm lens instead. ↩︎

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