Focal length: 58mm
Mount: M42
Aperture: F 2.0 - F 16
Min focus distance: 0.50m
Length (from flange): 40/49mm [+ 27mm for the adapter], rear element protrudes 8mm
Diameter: 63mm
Weight: 240gr.
Some pictures:
A7 and the lens.
Sample pictures: You may click
on the sample image (except closest focus) for full resolution. The
full resolution image opens in a new window, so you can keep it open
for comparison. Focus is on the
satellite
dish to the right of the big solar panel near the center of the photo.
F 2.
F 8.
F 16.
Closest focus is 35cm from
the outermost
edge of the lens, F 8. Focus on
the program wheel of the camera.
This lens was sold with Zenit SLR cameras. The prices for the M-4
version are a bit lower, they have a lower resolution as the top
classed models M-6 and M-7. The later
Helios 44 M series lenses were classed from M with the lowest
resolution (38/19 lpmm) to M-7 (50/30 lpmm, a bit hard to find). The
M-4 has 41/20 lpmm, it's a very decent lens. I could see no difference
in sharpness to the M-6, but judge yourelf. This one is an 6-blade KMZ
version from
the 1990, with automatic aperture. Wide open it's quite soft towards
edges. Stopped down a little
bit, it gets immediately
sharp. The lens has good
close focussing capablities. It is a small Helios 44 variant, but it's
still relatively big and heavy. A nice
lens which offers
one usable stop more than a standard lens.
For the "Bokeh" of the different Helios 44 lenses I have made a separate page.
