A week with the True Normal
There is a definition for the focal length of a normal lens in 35mm format.
This is about the length of the diagonal of the size of the format, and this measures to be about 43mm on the 35mm format.
It is on this basis that Pentax made the FA43/1.9 Limited lens as part of their limited series of lenses.
(Yes, its not an odd ball number that came from nowhere)
The basis being that the normal (43mm) on 35mm format would be an easier focal length to use as a normal lens, where some consider 50mm to be a bit long and 35mm to be a bit wide.
20141219-DSC07473-2400 by jenkwang, on Flickr
Lens wise :
43mm f1.9
7 elements 6 groups
8 aperture blades
20141225-DSC07550-2400 by jenkwang, on Flickr
Size wise, its a small lens of pancake design.
About the size of the Canon 40mm f2.8 lens (at f1.9 instead)
Well built all metal construction.
I just like it for the low encumbrance.
20141221-DSC07517-2400 by jenkwang, on Flickr
X marks the spot by jenkwang, on Flickr
There is a definition for the focal length of a normal lens in 35mm format.
This is about the length of the diagonal of the size of the format, and this measures to be about 43mm on the 35mm format.
It is on this basis that Pentax made the FA43/1.9 Limited lens as part of their limited series of lenses.
(Yes, its not an odd ball number that came from nowhere)
The basis being that the normal (43mm) on 35mm format would be an easier focal length to use as a normal lens, where some consider 50mm to be a bit long and 35mm to be a bit wide.
20141219-DSC07473-2400 by jenkwang, on Flickr
Lens wise :
43mm f1.9
7 elements 6 groups
8 aperture blades
20141225-DSC07550-2400 by jenkwang, on Flickr
Size wise, its a small lens of pancake design.
About the size of the Canon 40mm f2.8 lens (at f1.9 instead)
Well built all metal construction.
I just like it for the low encumbrance.
20141221-DSC07517-2400 by jenkwang, on Flickr
X marks the spot by jenkwang, on Flickr
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