LOMO LF lenses informations required

[ongarine]

In the last couple of years I found here in Italy and on the international auction market numerous Russian large format lenses.
Industar f4,5 300 is the more common and it is a Tessar design.
What puzzle me are the following lenses:
LOMO RF lenses (RF-3 10/300, RF-4 10/360 and RF-5 10/450)
LOMO 11M lenses (9/300, 9/360 and 9/450)
They are different in shape and therefore in design, LOMO RF seems C-Claron while LOMO 11M seems Apo-Ronar.
Now I see another LOMO Lens RF-240 5.6/240 to complicate the situation.
Someone has more informations about these lenses and design?
I remember some Russian Apugers, they could kindly help?
Thanks
Daniele

 

[eumenius]

Daniele,

I am glad to help you - please, do a search on APUG for "Industar-11M" and see, I've posted lots of information about both I-11M (Apo-Tessar clone) and RF (dialyte) lens ranges. Both kinds are excellent process lenses, so if they're cheap, don't hesitate to get the ones you need.

Cheers from Moscow, Zhenya

 

[Dan Fromm]

Zhenya, it pains me to disagree with you, but I think you're mistaken about the RFs' design. I have an RF-5, have taken it apart for cleaning. It is not a dialyte, it is a 4/4 double Gauss.

Daniele, design is irrelevant, don't let that sway you. The C-Claron you mentioned is a 6/4 Plasmat, is typically sold in barrel with fixed aperture. The Apo-Ronar is a dialyte.

I've shot my RF-5 (450/10) against 420/9 and 480/9 Apo-Nikkors, both dialytes. I think the Apo-Nikkors are a little better, but if I had only the RF-5 I wouldn't feel horribly deprived.

These days many lenses in this class sell at quite low prices. I paid $50 for my RF-5 at a camera show, $64 including postage for the 420/9, and $120 including postage for the 480/9.

Cheers,

Dan

 

[acroell]

The Lomo process lenses I am aware of are the following: The 11M series are Apo-Tessar types, the RF1,3,4, and 5 are double Gauss types as Dan said (but not wide angle double Gauss, its a regular 46° angle).There is a long focus series, called O-2, which actually is a dialyte,and an RF-240 which is a Plasmat.

 

[eumenius]

Oh yes, friends, thank you for your corrections - I wanted to write the same, but I was too sleepy You're completely right about the lens types, that's me stupid

Zhenya