50mm f/1.4 legacy lenses – Shootout Wide Open -
http://www.verybiglobo.com/50mm-f1-4-legacy-lenses-shootout-wide-open/
Antique and Classic camera site -
http://www.antiquecameras.net/home.html
Article on adding AF confirm on MF Nikon lenses -
http://pindelski.org/Photography/2012/03/17/adding-a-cpu-to-mf-nikkor-lenses-part-ii/
Battle of the legacy 50mm lenses -
http://www.addicted2light.com/2012/12/08/battle-of-the-50s-contax-60-vs-minolta-vs-olympus-vs-pentax-takumars/
BKS Picture Blog -
All about analogue photography, tips and trick, experimental pictures etc.
Camera Legends blog -
https://cameralegend.com/
https://cameralegend.com/
Cameraquest -
Classic camera articles
Carl Zeiss Jena Tessar 50mm f2.8 (M42 mount) Servicing -
http://oomz.net/tessar/
http://oomz.net/tessar/
Helios 44-M4 modification -
http://chris.stingray.free.fr/Tuto/Modif_H44M4/Pinoche_H44M-4.html
Jupiter 9 -
Relube instructions
Leica LTM to M adapters -
https://cameraquest.com/adaptltm.htm
Lens mount identification -
http://rick_oleson.tripod.com/index-99.html
List of Helios lenses -
http://forum.mflenses.com/complete-list-of-helios-lenses-getting-closer-t26100,highlight,%2Bhelios+%2Bm44+%2Blist.html
List of manufacturers of Vivitar lenses -
https://www.cameraquest.com/VivLensManuf.htm
Shutter releasing -
Vintage lens blog with samples of photos taken with the lenses
Talk E Mount - Industar 50 article -
https://www.talkemount.com/threads/help-industar-50-3-5-50.1120/
Talk E Mount article - Mir 1 -
http://www.talkemount.com/showthread.php?t=1032&page=4
Vintage lens comparison with modern lenses -
https://www.youtube.com/watch?v=ykw_LqI8iOI&feature=plcp
Vintage Lens site -
http://vintage-camera-lenses.com/
http://vintage-camera-lenses.com/
Vintage Lenses for Video -
http://www.vintagelensesforvideo.com/
Vintage Zeiss Glass on Modern Cameras -
https://frankglencairn.wordpress.com/vintage-zeiss-glass-on-modern-cameras/
https://frankglencairn.wordpress.com/vintage-zeiss-glass-on-modern-cameras/
Zeiss / Contax SLR Lenses -
http://photo.net/equipment/contax/shea-lenses