Cheap flat lens?

[rbiemer]

You might try one of these:
http://cgi.ebay.com/Skink-Pinhole-Pancake-Pro-Lens-Kit-Leica-M-M39-M9-M8-MP_W0QQitemZ290385236303QQcmdZViewItemQQptZCamera_Lenses?hash=item439c4f114f

Not Rf coupled but also not an issue with these. Your exposure times may get a bit long...
Rob

 

[jsrockit]

Cameraquest has the PII 35mm in stock...I bought one last night.

 

[mdspace]

● Color Skopar 35mm F2.5 PII - 23mm lenght ($329 USD)
● Color Skopar 35mm F2.5 PI - 25mm lenght ($250-$350 USD)
● Color Skopar 35mm F2.5 C - 24mm lenght ($299-$349 USD)

● Russar MP2 20mm F5.6 ($350-$600 USD)

● Hologon 16mm F8 ($1,800-$2,000 USD)

● LOREO Lens in Cap 35mm F5.6 (M42-LTM-M Adapters needed) ($15-$20 USD)

 

[Dwig]

Early style LTM Summaron 35mm f/3.5 = 23mm flange to front (22mm for lens + 1mm for M adapter)

 

[Juan Valdenebro]

Thank you, Dwig... I never heard of it before.

 

[mdspace]

Old Delft MINOR 35mm F3.5

Check: http://nuvolari.blog86.fc2.com/blog-date-200812.html

 

[mdspace]

De Oude Delft Minor 35mm F4.5

Check: http://www.oldlens.com/delftminor35f45.html

 

[Makten]

On the wide side again, but very flat: http://www.cameraquest.com/koba28.htm