Hinged Side on Mamiya TLR Lens Shades

roughman · May 18, 2023

Hi!
My interest in analog photography has reignited!
Can anyone tell me the purpose of the hinged side of the 55 and 180 mm Mamiya TLR lenses lens hoods??
T'anks.

MattKing · May 18, 2023

Welcome to Photrio.
IIRC, due to the geometry, that side of the lens hood can impede on the view through the viewing lens.
The hinge permits swinging that side out of the view.

grahamp · May 19, 2023

It can also help with taming glare off the top surface when facing into the light.

bernard_L · May 19, 2023

MattKing said:
Welcome to Photrio.
IIRC, due to the geometry, that side of the lens hood can impede on the view through the viewing lens.
The hinge permits swinging that side out of the view.

More precisely, the hinged side can be oriented such that, while being in front of the viewing lens, it slopes tangentially. In other words, it should be seen edgewise by the viewing lens, and thus almost invisible.

roughman · May 19, 2023

MattKing said:
Welcome to Photrio.
IIRC, due to the geometry, that side of the lens hood can impede on the view through the viewing lens.
The hinge permits swinging that side out of the view.

Thank you.

roughman · May 19, 2023

bernard_L said:
More precisely, the hinged side can be oriented such that, while being in front of the viewing lens, it slopes tangentially. In other words, it should be seen edgewise by the viewing lens, and thus almost invisible.

Thank you.

roughman · May 19, 2023

roughman said:
Thank you.

Thank you.

roughman · May 19, 2023

bernard_L said:
More precisely, the hinged side can be oriented such that, while being in front of the viewing lens, it slopes tangentially. In other words, it should be seen edgewise by the viewing lens, and thus almost invisible.

Thanks!

roughman · May 19, 2023

grahamp said:
It can also help with taming glare off the top surface when facing into the light.

Thanks!

Hinged Side on Mamiya TLR Lens Shades

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