Focal length: 58mm
Aperture: F 2.0 - F 16
Min focus distance: 0.50m
Length (from flange): 40/49mm [+ 27mm for the adapter], rear element protrudes 8mm
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
dish to the right of the big solar panel near the center of the photo.
Closest focus is 35cm from
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
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.