Home

Please support mflenses.com if you need any graphic related work order it from us, click on above banner to order!

SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

MC Helios 81M 53mm/2
View previous topic :: View next topic  


PostPosted: Sat Aug 16, 2014 4:41 pm    Post subject: MC Helios 81M 53mm/2 Reply with quote

Hello everybody,

Here is another share about soviet lenses. This time, it's an Helios-81M (in Nikon mount, for Kiev-19) made by Arsenal, mounted on A7. Diagram is not exactly like helios-44.
H-81:


H-44 :

(from zenitcamera.com)

Some light scratches on the lens, doesn't seems to affect IQ.


#1


#2


#3


#4


#5


PostPosted: Sat Aug 16, 2014 6:53 pm    Post subject: Reply with quote

I also have a helios 81, but yours looks sharper and better. Mine has glow around highlighs, and is probably compromised somehow.


PostPosted: Sat Aug 16, 2014 6:56 pm    Post subject: Reply with quote

Nice rendering again. The second image of the yellow Lada also shows quite a lot 3d pop for me. Do you remember the F-stop? And where did you focus to achieve this level of sharpness?


PostPosted: Sat Aug 16, 2014 8:29 pm    Post subject: Reply with quote

Is this lens a copy of any 50mm Nikkor?


PostPosted: Sat Aug 16, 2014 10:23 pm    Post subject: Reply with quote

cropshy wrote:
Is this lens a copy of any 50mm Nikkor?

I highly doubt it, I'd say it's based off the Helios 44 as the air-glass transitions are nearly identical.


PostPosted: Sun Aug 17, 2014 5:31 am    Post subject: Reply with quote

Mark wrote:
Nice rendering again. The second image of the yellow Lada also shows quite a lot 3d pop for me. Do you remember the F-stop? And where did you focus to achieve this level of sharpness?


Focused on the left headlight of the car, and I think I closed to 4 or 5.6.


PostPosted: Sun Aug 17, 2014 5:31 am    Post subject: Reply with quote

cropshy wrote:
Is this lens a copy of any 50mm Nikkor?


I don't know Nikkor Smile


PostPosted: Sun Aug 17, 2014 5:46 am    Post subject: Reply with quote

cropshy wrote:
Is this lens a copy of any 50mm Nikkor?


Similar but not the same from this link:
www.mir.com.my/rb/photography/companies/nikon/nikkoresources/6070nikkor/standard/50mmf2.pdf

OH


PostPosted: Sun Aug 17, 2014 5:53 am    Post subject: Reply with quote

Optical diagram of the Helios-81


Nikkor-H 5 cm f/2


The designs are similar, but I won't say it's a copy. It's a typical Double Gauss design.


PostPosted: Mon Aug 18, 2014 4:47 pm    Post subject: Reply with quote

Some more with this lens on A7 :

#1

#2

#3

#4

#5

#6

#7