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  1. Only 2 lenses: 35 and 50mm!?!
  2. Fastest Tool to clear yellowed Thorium lenses
  3. Spiratone Colorflow II filters
  4. 21mm And Distortion
  5. DLux 4 and External Finder
  6. haze or dust?
  7. What to wear...?
  8. Rust on blades: how serious?
  9. Put this on your rangefinder and try to focus it...36" f4 beast
  10. Hexanon lenses on Leicas
  11. Why does Medium Format look so different to 35mm?
  12. Help with filter factors!
  13. Your favorite/best filter for B&W photography?
  14. Interesting Zeiss Article about Tessar Design
  15. 21mm lenses
  16. Close up lenses and MFD
  17. When you think 1:1 is fast....
  18. classic optical formula
  19. Cine Lenses - Cooke, Zeiss etc
  20. Acmaxx Lens Armor?
  21. Summitar and Thorium versa Uranium Prints
  22. Super Fast Super Wide is not for rangefinders?
  23. Filters on Single coated lenses
  24. retrofocus lenses and RFs...
  25. Rodenstock vs Schneider vs Pentax Loupes
  26. Lens condition
  27. Lens Coatings and Colour Response
  28. Is this flare?
  29. Does anyone still use shift lenses?
  30. Why use a fast 50mm?
  31. which 21mm cv viewfinder for accuracy?
  32. Post your images taken with a 19mm~21mm lens
  33. Is this Haze, Condensation, or Coating damage?
  34. recommend me a nice slide projector
  35. Crop factor wins again
  36. Why The Plague of Longitudnal CA
  37. Contax G 35mm planar vs Hexar AF lens
  38. "Aperture chameleons"
  39. Rainbow Imaging "Wide Band Fader" adjustable ND filter
  40. Must have software for lens geeks
  41. shooting f4 with misalligned rf
  42. lens mount question
  43. Focus chart for rangefinder cameras (just print and test)
  44. fast flare free 35s
  45. Blasting fungus with UV, can it work?
  46. How Many Photons in a Photograph
  47. There's something about the 50mm FOV...
  48. Why convertable lenses (frt interchang / bak fixed)
  49. Lens contrast: does is many any difference?
  50. W/NW 90 mm Minolta Rokkor-M
  51. bronica RF645 lenses not sharp! (diffraction test)
  52. CV 15mm vs. Velvia 50
  53. so I tried to set my RF according to the Nokton 35 and...
  54. HELP! Haze in lens, should I return? Pics inside
  55. M3 with delaminated finder experiment
  56. importance of a lens shade
  57. Filter Question- Yellow and Polarizer
  58. Need help! FotoDiox adapters
  59. What is up with this lens?
  60. It's not sharp...or is it?
  61. Bokeh and wide open performance of Heliars, Planars, Tessars, Triotars
  62. Lens with Perfect Circular Diaphragm stop down
  63. Steinheil-Munchen lenses = dating by serial # ?
  64. The highest quality for cost 50mm's
  65. what are various RF registers?
  66. X ray lenses those Exotic 0.75 and 0.95s KOWA etc
  67. measuring lines / mm at film
  68. aperture blades at 35 mm and MF lenses
  69. F3.5 100mm Canon Lens Formula
  70. Favorite 40?
  71. Should I send this Canon 50/1.8 back
  72. Perspective Distortion of Telephoto Lenses across Formats?
  73. LTM->m mount adapter question
  74. Correcting Distortion
  75. What kind of wide angle lens is resistant to flare?
  76. shaeper
  77. Replacing an Aspherical Element?
  78. Sold 2 lenses, bought 2 lenses
  79. Carl Zeiss Jena 8.5cm Triotar - but what does it fit?
  80. why are f-stops 2, 2.8, 4, 5.6, 8, 11?
  81. Why get such a fast 50mm? 50mm f1.2 vs f1.4
  82. what is the deal with chromatic aberration?
  83. What am I looking at? and how do I find more... (image intense)
  84. controlling perspective with a 28mm
  85. Help with my lens
  86. Can this be fixed (Reasonably) ?
  87. Separation or haze - that's the question
  88. Stuck adapter or M mount ?
  89. What cameras use Series Filters?
  90. LSM (M39) lens on Leica M6
  91. Bubbles or Leica Glow ?
  92. Long Lenses and DOF
  93. low contrast vs high contrast lenses on B&W film
  94. The year is 1954....
  95. diopter question
  96. Leica Lens Making Video
  97. Turret viewfinders
  98. Need Help/Feedback Please: Rear Element-Can this be cleaned up?
  99. 40mm and a 50mm?
  100. focus shift - please explain it
  101. Lens focussing errors
  102. Viewfinders of film P&S cameras: normal vs big
  103. This question pre-supposes the existence of "Leica Glow."
  104. What FL for RF vs. SLR
  105. Zeiss and Schneider designs, same?
  106. Useing my analog lens on my digicam?Is an f2 better than an f4?
  107. Budget Glass Hall of Fame
  108. Tiffen filter why uncoated, any advatage?
  109. Lens decementing and coating damage problem
  110. How is shutter speed defined really?
  111. dust
  112. Mind your Focus Shift...
  113. Hood and filter question
  114. Fixing that old glass
  115. What's your favourite lens on the Nex-5n?
  116. Loose retaining rings in B+W filters
  117. Beginner with Pentax Loupe question
  118. Is this real?
  119. 1:1 Macro Lens on APS-C Sensor
  120. Want to try filters - need a 'for dummies'
  121. Fast old wides for DSLR
  122. Industar-50, Collapsible vs Rigid depth
  123. ferider-adapted smc pentax-m 50/1.4 ...
  124. Review: ferider modified Pentax 50/1.4 in M-mount adapter
  125. developments in autofocus technology
  126. FSU LTM need adjustment for M mount?
  127. Filters
  128. How to Calculate Crop Factor, F-Stops, and Equivalent Lenses
  129. Avenon/Kobalux 21mm pouch?
  130. How far away is infinity? (optically speaking, of course)
  131. Some lenses tested on a Chinese website
  132. Will having camera in gym locker affect lens? Moisture?
  133. 'C' mount lenses
  134. Why is 24/25mm better than 28mm?
  135. Does your Summicron focus-shift?
  136. Flat lens offers distortion free images
  137. What did you do with your high end enlarging lenses?
  138. Fader ND filters
  139. How to figure out flange focal distance? [Focomat 2c]
  140. 15mm vs. 21mm
  141. What if
  142. fotodiox adaptors for EOS EF-M mount
  143. What's better than Autofocus and manual focus?
  144. so How Different/Similar is a Leica R Lens to an M
  145. Which 50mm!?!?!
  146. Do you mix and match your lens brands?
  147. Lens wisdom of the day (the century)
  148. Barry Lyndon Zeiss 0.7/50 write-up
  149. 50mm with character?
  150. why do elements seperate?
  151. why can't you evaluate flare and bokeh in the viewfinder?
  152. Helicoid 13-17mm to short.
  153. What to do with hazy lenses
  154. Lenses for Curved Screen Projection
  155. Does it make sense to replace single 35 with 28 + 50?
  156. ID this mount?
  157. Focus accuracy on film vs. digital
  158. focus shift basic question
  159. Best 21mm lens for infrared photography
  160. 'Front cell' vs 'unit' focussing
  161. Differences in lens characteristics and performance
  162. Elmar Vs. Tessar or why did the Tessar conquer the world?
  163. 40mm lenses: why are they so small?
  164. DIY 35mm lens test on Fuji, Summilux and Summicron
  165. A fuzzy question
  166. Can someone explain this question of F stops?
  167. Cooke Triplet lens - any for M's
  168. Does the size of a projected image double if you half the focal length of the lens?
  169. Film lenses and mirrorless digital
  170. sonnars and focus shift
  171. Low Contrast Lens:High Contrast Scene?
  172. Fast Sonnar Clone Shootout - Canon, Jupiter, Nikkor
  173. Radioactive lenses and Geiger counter
  174. Tessar (type and triplet) front element focusing - focus shift
  175. Determining Lens Hood Dimensions
  176. The making of a custom lens mount
  177. how to check for vignetting (from hood/filters)
  178. Front cell focusing revisited
  179. Can I see "bad" bokeh...
  180. has anyone converted their Hexar AF lens to M-mount?
  181. Stepless aperture lenses
  182. Kubrick exhibition at LA County Museum
  183. Soft or Sharp
  184. What lens type causes the "circular" blur/bokeh?
  185. f/22 & f/32?
  186. What dipoter do I need?
  187. About UV filters...
  188. Sunny 16 same for long lens?