remember me Forgot your password?
Sign in    Registration                 We’re creating the largest and most complete database of photographic lenses in the world! Join us!
All About Photographic Lenses.
Specifications, comparison, reviews,
MTF-charts for lenses by Canon,
Nikon, Sony, Pentax, Olympus,
Sigma, Tamron, Carl Zeiss, etc.




Helios-81 50 mm f/ 2 Lens

Pictures

Helios-81 50 mm f/ 2 lens

Helios-81 50 mm f/ 2 lens

Helios-81 50 mm f/ 2 lens

Helios-81 50 mm f/ 2 lens

Optical design

Helios-81 50 mm f/ 2 optical design

Format: 35mm SLR

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: M42, Nikon F (FX, DX)

Optical design: 6 elements in 4 groups (planar)

User reviews (6)

Photos (12)

Tests (0)

Owners (22)

Views (20822)

Average price: $15

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
50mmf/2.0f/1660.552240/8,548/1,9

Additional information:

The Helios-81 50 mm f/ 2 (Russian: "Гелиос") is a Kit lens for a 35mm SLR camera Kiev  (Nikon F mount) and with М42 screw mount. Versions with the single and multicoating (MC) existed.

This lens was being manufactured by an "Arsenal" factory in different modifications: Helios-81-avtomat, Helios-81M, Helios-81N (russian letter looks like "H"). Later version was named ARSAT-H 50 mm f/2.

Also there was released sample quantity of Helios-81 52 mm f/2 at KMZ factory with a 12-blade diaphragm and minimum focusing distance 0.4 m.

Personally, i have seen Helios-81H in two modifications. It is interesting that a focal length differs in a short range if you inspect lens labeling for several samples.

This lens has a "swirly bokeh" (background looks like being twisted) but such effect is lighter than with Helios-40 or Helios-44.

According to D.Volosov (russian famous optics specialist) resolution of this lens is (center/10mm/20mm): 52, 37, 27 lp/mm.


Links to online resources:
Posted by: DevilDreams   Date of publication: 17.01.2011



Photos taken with this lens Helios-81 50 mm f/ 2:


Helios-81 50/2
Autor: Harkovsky
5 0 4150

MC HELIOS-81H 2/50
Autor: Harkovsky
5 0 3920

MC HELIOS-81H 2/50
Autor: Harkovsky
5 0 2293

MC HELIOS-81H 2/50
Autor: Harkovsky
5 0 2221

Mechanical quality4.4416
Optical quality4.2815
Usability3.7016
Pricing / Value4.7415
Bokeh4.2516
Overall lens rating
4.28

Embed to Blog (HTML) Embed to Forum (BBcode)


Owner reviews: Helios-81 50 mm f/ 2

ProfHankD 06.01.2016 07:41:10
Period of use: 36 months

Strengths:

Good USSR IQ -- it has the USSR glass look. In fact, color match between my old USSR lenses is surprisingly good. Really tiny (in Kiev 10/15 mount).


Weaknesses:

Build is solid, but a little coarse.


Comments:

Mine is in Kiev 10/15 mount, used on Sony E bodies via a 3D printed adapter.