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

Polaris Auto Zoom Lenses (YS mount)
View previous topic :: View next topic  


PostPosted: Thu Apr 07, 2022 4:12 am    Post subject: Polaris Auto Zoom Lenses (YS mount) Reply with quote

Brochure circa early to mid 1970s. It isn't explicitly stated in the brochure, but these are YS mount lenses.
(YS was a modified T mount system which enabled automatic diaphragm operation.)

My guess is Sun manufactured at least some of these lenses. But I don't know that for certain.
[Edit: Sigma is also a possible manufacturer of these Polaris lenses. See this thread:
http://forum.mflenses.com/ys-mount-for-sigma-lenses-only-t83762.html]


#1


#2


#3


#4


Last edited by 55 on Thu Jun 02, 2022 2:53 pm; edited 2 times in total


PostPosted: Thu Apr 07, 2022 5:43 am    Post subject: Reply with quote

I have the preset 6.3 m42 version of 90-190, did not know that there is auto too.


PostPosted: Sat Apr 09, 2022 5:11 am    Post subject: Reply with quote

F/6.3? Interesting. That lens appears to have come in different forms under several different brand names.
My 90-190 f/5.8 is a preset Sears.


PostPosted: Sat Apr 09, 2022 9:46 am    Post subject: Reply with quote

55 wrote:
F/6.3? Interesting. That lens appears to have come in different forms under several different brand names.
My 90-190 f/5.8 is a preset Sears.


no, actually it was 90/5.8 - 190/6

I just remember the 6 and rounded it to 6.3 Very Happy