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  1. Focal length, aperature, distance from film plane!
  2. how special of leica glass?
  3. Sean Reid's Comparison of 75mm lenses
  4. This Asian website might be of interest to lens aficionados
  5. Is this a coated lens?
  6. Stiff focusing Ring
  7. Xenon, Leitz and Schneider
  8. I'm in a lens quandary and need a push.
  9. To tab or not to tab, that is the question
  10. 135mm RF lenses - used a lot?
  11. Getting around myopia...
  12. Lens compatibility: ZF to ZK
  13. 35mm lenses are cool
  14. New camera No lens
  15. filter adapters and flare
  16. ???price for 50 cron DR???
  17. Care to outbid me?
  18. Image size calculation
  19. Zeiss TF or FT coated lens...
  20. lenses finder film size conversion table...
  21. LTM lens test of 50mm lenses w/ MAX 800
  22. Scrolling framelines, too hard to create?
  23. moving from 50 to 35mm as fav
  24. 75mm too long for every day use?
  25. ZM 28mm vs. Elmarit 28mm. Am I crazy?
  26. this feeling...
  27. Ektar vs Planar T*
  28. CV 25mm Color Skopar vs Zeiss ZF 25mm, anyone??
  29. Favorite Fast Screwmount Lens <$1000
  30. Forget about rendition...
  31. 35mm: Summicron-M vs. Nokton 1.4?
  32. 35mm Hexanon or Summicron?
  33. Canon RF 50/f1.2 disassembly thread?
  34. Robot-Leica adapter?
  35. 28mm competition: VC 1.9 vs Hexanon
  36. So show me a REALLY DISTINCTIVE 28mm M/LTM
  37. ANGENIEUX - Why so expensive?
  38. question for the optics / lens gurus
  39. Haze... What is it?
  40. Looking for mates to Summar 50/2
  41. Why coating on the front element?
  42. Future of the 50 lens
  43. What is the good Humidity (RH%) for RF camera, and Lens.
  44. Fast 35: canon 1.5 or Nokton 1.4?
  45. Zx
  46. Do you like to use the 21mm focal length?
  47. Lens gurus: is this bulls**t?
  48. Ring lens m42/m39
  49. Built my first hybrid lens!
  50. lens barrel won't focus to infinity mark
  51. Conversion A 2x filter
  52. Will this affect image quality?
  53. Focal Length Comparison Tool
  54. NY Times article about old lenses on digital cameras
  55. Leica grabs bragging rights with `fastest' lens
  56. is f2 fast enough?
  57. is it possible to fix this mess?
  58. 40 mm lens okay for portraits?
  59. Focal Length Distance Equivalency?
  60. slr lenses (nikon 50mm 1.2 for eg) on m mount camera???
  61. still trying to get my nikon lenses on my r-d1
  62. Help with lens evaluation please.
  63. CV 35mm f1.7 Ultron VS Zeiss 35mm f2 ZM
  64. Is there a Perfect Lens for RF?
  65. Summicrons F-value?
  66. Tony Lovell's Homemade 914mm f3.2 lens
  67. Rub marks, but will not affect images !
  68. Why no 28/1.4's?
  69. Yeah, but will it fit on my Leica?
  70. A question about stars
  71. A 1969 test of four fast lenses, including Nikkor and Noctilux
  72. Low contrast lenses and high contrast film?
  73. Low Contrast Lenses:
  74. Saving a lens
  75. What is a 28mm lens good for?
  76. An excellent, small but slow 50 lens?
  77. Laser accessory range/distance finder
  78. Best every day lens
  79. It's just a scratch...
  80. Canon Lens Production video
  81. 12mm Helier - loose/rattling
  82. Would this affect image quality? (rear element chip)
  83. Determining Focal Length
  84. Best old classics or new one little like old?
  85. How to spend $1000 on glass
  86. Value of Summilux - M 1:1.4 / 50mm Asph LHSA Special Edition
  87. Worst ever seen Lens.
  88. UN-coated LTM 50s?
  89. Which 90mm - purchasing artistic ability...
  90. Tomorrow's Miracle Lens Today! (Zunow f/1.1, circa 1958)
  91. The golden ratio and angle of views on lens
  92. A question for Zeiss lovers
  93. Are those expensive UV filters worth it?
  94. Best filters for a particular situation?
  95. Why so few fast ultra-wides/teles?
  96. filters; yes, or no?
  97. What is that diagonal formula ?
  98. Leica glow AND nice bokeh AND micro-contrast 3D. Is it a unicorn?
  99. Faster wides in LTM
  100. What Filters?
  101. Tilt-shift on rangefinders, or alternatives
  102. Voigtlander 35 f/1.2 or Pre ASPH Leica 35 f/1.4
  103. couple of very old photos from Japan
  104. resilvering Accura brightline finder
  105. Best 'portrait' 50mm lens
  106. In 2009 I want a . . . .
  107. collimative question
  108. Shutter release built into the lens?
  109. List of Sonnar Lenses
  110. Jupiter 1.5
  111. viewfinder images of different cameras
  112. Image Quality: Print v. Scan?
  113. UV Filter: Can It Be A Cheapo One ?
  114. More 'versus' : 50 Nokton, DR Summicron
  115. Zuiko 42/1.7 from SP adapted to M?
  116. What is the difference, really, between f/1.2 and f/1.4 ?
  117. I'm trying to understand Color
  118. Hyperfocal Focusing: Do's and don'ts?
  119. Cleaning lenses - breath
  120. Brutally sharp in a budget?
  121. looking through a lens element
  122. Treatment for fungus?
  123. ND filters
  124. heresy: using a lens pen on a scratched lens?
  125. Filter for CV 40/1.4 SC and Leica M6
  126. Is this a Lens Defect at the rear?
  127. Could you please Identify lens?
  128. 28mm viewfinders
  129. Next generation mirrors and the implication of new wide angles
  130. which lens 45mm clamp-on size
  131. Sonnar Lens Design Appeal?
  132. Apperture ring wiggle - how normal?
  133. Who Still Uses a Fish-Eye Lens?
  134. What makes a lens's focal length?
  135. Infra-red filter
  136. 50mm lens
  137. Single element, uncoated, fixed aperture 50?
  138. Which 135mm on an M6?
  139. Testing four RF 50mm lenses
  140. Compare CV 50/1.5 and Canon 50/1.4?
  141. Bigger is not better: a rant about lens manufacturers
  142. Really odd bokeh on 24
  143. hyperfocal infinity mark
  144. How do you feel about 24mm (84 diagonal)?
  145. UV/IR filter and classic b&w ?
  146. Voigtlander 1.5/50 Nokton vs. Jupiter 3
  147. Leica diopter
  148. How should I test a lens?
  149. SLR Lenses and RF Lenses: Differences?
  150. Eye-borg - Next Level In Camera Tech
  151. question re. megaperls mag for rd1
  152. Lenses that were modified to be LTM
  153. Canon 50mm f1.4 (Not sure if posting in right forum)
  154. Zeiss Contax 45/2 Planar vs. Pentax 43/1.9 Limited
  155. Unusual lens mount - what might it fit?
  156. One for Brian Sweeney!
  157. 35mm Ultron
  158. Converting S mount to LTM
  159. 60mm lens?
  160. The Ground Glass & The Focusing Screen
  161. J-12 for street photography
  162. Looking for CV 12 or 15mm lense in NJ/NY
  163. Sharpest 135mm
  164. 50/f2.0 Heliar compared to 50/f1.5 Nokton
  165. hand holding polarizer
  166. A small, light and fast 85mm
  167. Is it easy to adjust the apeture ring on a summicron?
  168. What are the symtoms of a lens that is out of alignment?
  169. Does 50/1.4 DOF = 100/2.8 DOF?
  170. What are the (subtle) difference?
  171. Hasselblad Planar vs. Rolleiflex Planar
  172. flash , polaroid back,digital camera
  173. Triplet VS. Tessar on a 2 1/4 folder (??)
  174. Small nick in lens
  175. How do you clean your lens and filter?
  176. wipe marks; what is the effect?
  177. Favorite Focal Length For Landscapes
  178. Diffraction and f stops
  179. uncoated lens best for Infra Red!!
  180. Smallest, lightest Leitz 50mm?
  181. Multi-coat UV/protective filters, Multi-part question
  182. Slow Zuiko lens 1.8
  183. Strange softness with a Russian lens.
  184. Petzval, Hemispherique Rapide, etc?
  185. using filters for bw ?
  186. is it ok to use uv-ir cut filter with 50mm?
  187. The f-stop mystique - a question for optical engineers or the tech-savvy
  188. which focal length for nice portraits
  189. where can i get the new wide heliar 15mm?
  190. Hexar AF lens remounted for M-mount
  191. M-Rokkors vs Zeiss ZMs
  192. a quarter of a stop faster.... difficult or gimmick?
  193. Is a 40mm lens the sweet spot?
  194. Optomet Filters
  195. Enlarging Lenses on a RF...
  196. Lens flare in the new Star Trek movie
  197. another crazy idea
  198. 40/2.8 Rollei Sonnar vs. 35/1.4 Nokton SC
  199. confused: UV filter vs skylight filter?
  200. f-stop question
  201. lightmeter doesn't recognize contrast filter!
  202. why UV filter?
  203. Elmarit 21mm, what is this, issue?
  204. leica 35mm Summicron ASPH black-out
  205. Wide angle lens better on Rf or SLR?
  206. my new Nikkor 35/1.8 threadmount
  207. Opposite of close-up filter?
  208. Using Filters on un-coated lenses - asking for MORE flare ?
  209. Anyone know what a Leitz New York "H" filter is?
  210. Weird Summaron Field Curvature?
  211. How do you envision depth of field with a RF camera?
  212. Sometimes I wonder...
  213. Amazing Bokeh and Resolution from a Helios 103!
  214. Red Dot Glue
  215. Lens from Minolta TC1
  216. Understanding RF magnification
  217. How to figure out your lens focal length using Cheeto's
  218. Glow vs. 3D
  219. Lens Generations, Imitation and Originality
  220. If you're looking for some serious Asian old lens aficionados and images
  221. COOKE AMOTAL ANASTIGMAT 2,5" F", filter size?
  222. Different formats and DOF
  223. Some pages from old old magazines
  224. Which bodies DON'T take collapsible lenses?
  225. Why there isn't an F/1 Sonnar?
  226. Why is contrast good in a lens?
  227. leica mount macro lenses
  228. 50mm AA
  229. Kobalux and VC both 28mm, f3,5 any experiences?
  230. Filters for vintage look
  231. Lenses Vs. Fongus!!! is it possible to be clean
  232. CV, ZM & Canon 50/1.5s
  233. Does the brand of UV filter matter?
  234. Anyone used 7dayshop.com filters?
  235. super wides: 15mm and 18mm M mount lens
  236. Infra red focusing with Apochromatic lenses
  237. Generic ebay cokin filters?
  238. A Ken Rockwell lens and focusing quote
  239. Filter for non-coated lens
  240. Recycling optical elements, lens design 101
  241. convert M mount to LTM?
  242. Question about aperture and depth of field
  243. Shooting in 50mm
  244. Jupiter 37a CLA (135mm)
  245. Kodak Series "N" filters -- what are they good for?
  246. Spiratone Portragon 100mm f/4
  247. Recommend a cheap 35mm & 90mm in M or LTM mount
  248. Interesting Development from Sony
  249. Tell me what UV filter to get for CV35/2.5
  250. Mirrors and Lenses and Cameras Question