Question on 1.4x Apo-Extender-R

[Guest rubidium]

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I have an opportunity to buy a used one of these in mint condition, but would first like to resolve some uncertainty I presently have about possible variations of these extenders. I see some images on the web with the engraving "For R 2.8/280", and others with the engraving "For R 2.8/280 2.8/400". Are these different items in the optical sense, or simply variations in labeling? Also is there a ROM version if this extender, and if so is the non-ROM compatible with ROM lenses?

 

Bottom line is that I'm looking for compatibiity with the 4.0/280 Apo-Telyt-R ROM.

 

Thanks for any insights,

Jim

[wizard]

Jim, the 1.4-Extender was originally designed for the Apo 2.8/280 lens, hence the labeling on early versions. It may be used with other lenses as well, notably the 2.8/400 and also the 4/280 you mentioned. There is no ROM version of this extender, but it is compatible with ROM and non-ROM lenses.

 

Best,

 

Andy

[gautier]

You can see a table of compatibility on Multiplicateurs Leica, Apo Extender R 1,4x et 2x, Extender 2x

[telyt]

... I'm looking for compatibiity with the 4.0/280 Apo-Telyt-R ROM.

 

I dunno about ROM but optically and mechanically it works great.

 

http://www.wildlightphoto.com/birds/anatidae/cago01.jpg

[Guest rubidium]

Thanks to all.

Jim