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  1. Sigma AF 70-300mm f/4-5.6 APO DG macro and Tamron AF70-300mm F/4-5.6 Di LD Macro 1:2
  2. from sigma 17-70 to canon 17-40 L, Is it a worthwhile upgrade?
  3. What makes a really good lens? Carl Zeiss VS Tamron
  4. Any feedbacks on the Sigma 17-70mm??
  5. sigma flash
  6. Tamron 90mm F2.8 DI flash performance
  7. Tamron 28-75mm F/2.8 XR Di Lens comman
  8. sigma vs tamron 17-50 2.8??
  9. Canon 20D with Sigma 18-200 DC
  10. tamron 17-50 f2.8
  11. Tamron Lens
  12. Tamron SP AF17-35mm F/2.8-4 Di LD Aspherical
  13. Tokina AF 28-70mm f/2.6-2.8 AT-X Pro II?
  14. sigma 8mm fisheyes.
  15. Tamron 17-50mm F2.8 problem... soft!!
  16. Tokina 80-400mm discontinued and out of stock!!!
  17. Buying Sigma 50-150mm!
  18. Difference between a Sigma DG and non DG lens?
  19. Tokina 16-50 f2.8
  20. Sigma 50-150mm EX HSM f2.8 or Sigma 70-200mm EX HSM f2.8?
  21. just got a Tokina Aspherical 2.8 28~80mm
  22. Tamron announced 18-250mm f3.5-6.3 lens
  23. Sigma 17-70mm f/2.8-4.5 Macro DC
  24. Sigma 70-200mm f/2.8 DG Macro
  25. Tokina 28-80 or 28-70?
  26. Sigma 70-300mm APO DG Macro feedback
  27. Any owners of Sigma 17-70?
  28. Will you buy the Sigma DP-1?
  29. OMG! Sigma 18-200 mm F3.5-6.3 DC OS announced at Photokina!
  30. Sigma 150mmf2.8 canon mount
  31. Any comments on Sigma 30mm F1.4 EX DC HSM
  32. International warranty for Tokina Lenses?
  33. Feedback from Sigma users regarding peeling and build issues
  34. Sigma MACRO 50mm F2.8 EX DG
  35. Sigma 18-50mm f/2.8 EX DC macro (Vs.) Tamron SP AF17-50mm f/2.8 XR Di II LD
  36. When will the new Tokina lenses be out and how much?
  37. Sigma lens calibration
  38. Sigma 18-200 on 20D
  39. Sigma APO 70-200mm F2.8 EX DG MACRO HSM
  40. General lens cleaning and servicing for sigma
  41. Tamron 70-300mm or Sigma 70-300mm
  42. Need Advice: Tokina 12-24mm or Sigma 10-20
  43. Tokina AT-X 535 PRO DX 50-135mm F2.8
  44. New Sigma 18-200mm F3.5-6.3 DC OS
  45. How many version of Sigma 70-300mm f/4-5.6
  46. sigma sd-14 at photokina
  47. Mount for Tamron to Canon EOS?
  48. Regarding Tokina AF 80-200mm F2.8 - AT-X 828 AF PRO
  49. Photo samples from tokina fisheye zoom and 50-135
  50. Any owners of the Tamron 18-200?
  51. Sigma lens aperture not closing
  52. Sigma 17-70mm f/2.8-4.5 Macro DC
  53. Advice on sigma lens
  54. those with tamron 17-35 help!!!
  55. Tamron 17-50 f2.8 got minolta mount?
  56. Nikon 60 micro or tokina 100 macro?
  57. Sigma or Sunpak: which flash to choose?
  58. Sigma fan club
  59. Opinion Wanted: Sigma 28-70mm F2.8 or Tamron SP AF28-75mm F/2.8
  60. Sigma 17-70
  61. tokina ATX 28-70mm f/2.6-2.8 or Tamron 28-75mm f/2.8
  62. Any Tamron 28-300mm lens user here?
  63. tokina atx 828 pro 80-200 f 2.8 ***
  64. Tamron SP AF 28-75 f/2.8 XR Di LD Aspherical (IF) Macro Lens
  65. How is the Tamron CPL filter?
  66. Seeking feedback on sigma 120-300 nikon mount
  67. How does Tamron SP AF 24-135mm f/3.5-5.6 perform?
  68. Test shot - Sigma 30/1.4 on Nikon D80
  69. Sigma lens coating...
  70. tamron 17-50 or 28-75 f2.8
  71. Sigma Heng Suay
  72. Servicing of Tokina lenses
  73. Tamron 17-35mm VS 17-50mm
  74. Tokina 28-80mm f/2.8 AT-X 280 AF PRO
  75. anyone use sigma 14mm F/2.8 EX HSM
  76. Anyone with Sigma lens calibration experience?
  77. Tamron 17mm-50mm F2.8 on 1D
  78. Sigma or Tamron 70-300mm for K10D?
  79. which one to buy, sigma 28-200mm or 70-300mm?
  80. Tokina 80-400D
  81. Sigma APO 50-150mm f/2.8 EX DG HSM
  82. Sigma 8mm fisheye on 350D
  83. sigma 18-200mm F3.5-6.3 DC
  84. Tamron 180mm macro lense
  85. Sigma 24-70mm f/2.8 Canon Mount
  86. Tokina lens
  87. Tamron 17-35 VS Tamron 17-50 F2.8 VS Sigma 15-30 VS Tokina 16-50 F2.8 VS Canon 17-40
  88. Sigma 18-200 vs Tamron 18-200
  89. Tamron 90mm macro F/2.8
  90. sigma 120-300 2.8 feedback?
  91. tamron 28-75 f2.8
  92. sigma 24-70mm f3.5-5.6 review please
  93. Tamron 17-50mm f/2.8 XR Di II LD Aspherical (IF) or Tamron AF 28-75mm f/2.8 SP XR Di
  94. seeking opinions on Sigma APO 70-200mm F2.8
  95. Sigma 30mm f1.4
  96. Tamron 17-50mm f/2.8 Di II LD Aspherical IF SP AF or Sigma 17-70mm f/2.8-4.5 DC Macro
  97. tamron warranty..
  98. i bought a lemon - anyone got their sigma lens sent to japan before?
  99. any review for Sigma SD14?
  100. Anyone service their Tamron 28-75 F2.8 before?
  101. Sigma 18-200. Anyone used it?
  102. Tokina 12-24mm f/4 vs Sigma 10-20mm f/4-5.6
  103. tamron lens calibration
  104. where can I service tamron lens?
  105. How bad is CA in Tamron 17-50mm f2.8?
  106. How come my Sigma 10-20mm no manual override?
  107. What UV filter to buy for tokina 12-24 mm?
  108. Tamron SP 17-35mm Di lense (F2.8)
  109. Tamron AF18-250mm F/3.5-6.3 Di II　LD Aspherical [IF] Macro (Model A18)
  110. Sigma 50-150mm/f2.8 lens
  111. Cleaning of Sigma Lens.
  112. Sigma 17-70mm f/2.8-4.5 DC Macro
  113. Tamron 17-50mm or Sigma 18-55 ?
  114. Problem with Tamron 17-50 f/2.8
  115. Can a Sigma type DG lens be mounted on an APS-C body?
  116. Quick comparison: Tokina 50-135mm vs. Sigma 50-150mm
  117. Sigma Lenses
  118. tokina 50-135mm f2.8 = pentax 50-135mm f2.8
  119. Where to buy Sigma 50-150mm?
  120. Sigma APO DG Macro 70-300mm
  121. Halo for Tamron 18-200?
  122. Tamron 28-200mm XR Usable with 400D
  123. Sigma 150mm macro lens, Singapore or KL
  124. Tamron 18-250mm F/3.5-6.3 AF Di-II LD Aspherical (IF) Macro Review
  125. Tamron 17-50mm F/2.8 Vs. Sigma 18-50mm F2.8
  126. how bad is sigma QC ?
  127. Does Tokina lenses in HK have International warranty?
  128. New: 2 Tamron Lenses!
  129. Sigma APO 200-500mm F2.8 EX DG
  130. Sigma service centres in Singapore
  131. Teleconverter Tamron or Kenko..?
  132. Tamron and Sigma Lens Quality Issue?
  133. Macro with Tamron 18-200mm
  134. Comment on this Sigma 10-20 sharpness
  135. Sigma
  136. About Nikon Mount Sigma 18-50 F2.8 Macro
  137. Which is better? Sigma lens...
  138. Sigma 50-500mm lens - advice
  139. Sigma price thread???
  140. HK Tamron lens
  141. tokina got international warranty?
  142. New Sigma 70mm Macro?
  143. Tokina announces AT-X PRO DX 35mm F/2.8 Macro
  144. Sigma lens soft copy
  145. 180mm Macro, Sigma or Tamrom?????
  146. Sigma SD14 Users Fall In
  147. Tamron AF28-300mm F/3.5-6.3 , worth waiting ??
  148. Tokina 12-24mm or Sigma 10-20mm ?
  149. Tokina Lenses
  150. Sigma 18-125mm vs Sigma 18-200mm vs Tamron 18-200mm lens for Canon 400D
  151. Tokina 24-200mm
  152. tamron TC 1.4x
  153. Tamron Announces Sp Af70-200mm F/2.8 DI LD (IF) Macro
  154. Long Macro lens: Sigma 150mm 2.8 or Tamron 180 3.5
  155. Sigma EF 500 DG ST vs EF 500 DG Super
  156. Need help! Sigma 10-20
  157. Sigma 30mm f1.4 + Kenko Uniplus Tube 25
  158. Sigma quality question
  159. Tokina 50-135 f.28
  160. Can tamron 90mm used as a walkaround len
  161. Tamron 90mm - Focus Limiter
  162. Any hardcore Tamron lens user there?
  163. Anyone using Sigma DSLRs
  164. Why Tamron is more popular than sigma?
  165. Sigma 70-300mm Nikon Mount (Sharpness)
  166. Sigma walkaround lens
  167. Please share experience about Tokina 80-400
  168. About sigma 50mm macro...
  169. Sigma Paint Coating
  170. Tamron AF18-250mm F/3.5-6.3 Di II LD Aspherical (IF)
  171. Tamron 28-75 f2.8 or Sigma 28-70 f2.8?
  172. Anyone tried Tokina AF 10-17mm F3.5~4.5?
  173. Tamron 17-50mm/f2.8 & 28-75mm/f2.8
  174. Sigma 17-70 DC IF Macro
  175. Lens Test - Sigma 150mm F/2.8
  176. Tamron 200-500 telephoto zoom. Any good?
  177. Sigma SA 35mm film user?
  178. Tamron AF28-300MM F/3.5-6.3 XR DI VC LD
  179. Anyone has the ETA of the Sigma DP1?
  180. any body tries this Tamron AF 17-50mm f/2.8 Di LD ?
  181. Sigma 17-50mm 2.8
  182. Anyone using the Sigma 70-200mm f2.8 DG HSM MACRO (Nikon mount)?
  183. Tokina lens coverage from 12 - 200 mm
  184. Pls post pics **** with Sigma 70-300mm F4-5.6 APO DG MARCO
  185. Sigma 30mm f1.4 EX DG HSM
  186. Sigma 30mm f1.4 with Sigma 1.4X TC on Nikon D80
  187. Tamron 17-50 f2.8 >> Is your copy "Assembled in China" or "Made in Japan" ??
  188. Sigma 12-24mm
  189. tamron 18-200mm.. is it a good choice?
  190. Anyone interested in the Tamron 18-250mm?
  191. Sigma service centre?
  192. Should I buy Tamron AF 17-50mm f/2.8 SP XR Di II LD Asperical (IF) lens?
  193. Tokina 50-135 f2.8
  194. getting a Tamron 28-75 mm f/2.8
  195. Which is better? Sigma 10-20mm f/4-5.6EX DC HSM or Tamron SP AF11-18mm F/4.5-5.6 Di I
  196. Experiments with Tamron 90mm DI
  197. Sigma 50-150 f2.8
  198. D70 + Sigma 30mm --> Any Problem?
  199. Sigma 17-70 f2.8
  200. SIGMA DP1 new camera
  201. Tamron AF18-250mm F/3.5-6.3 Di II LD Aspherical (IF)
  202. Sigma 17-35 EX DG
  203. Sigma 18-50 f2.8 HSM Macro
  204. Tamron 500mm F8 SP Mirror Lens Test ...
  205. Sigma 50-150 on D80
  206. Sigma 24-70mm F2.8 EX DG MACRO
  207. My Tamron 28 -75mm f/2.8 is soft at f/2.8
  208. Tamron AF 28-75mm f/2.8 Lens
  209. Sigma 55-200mm F4-5.6 DC HSM
  210. Tamron 90mm macro VS Sigma 105mm macro
  211. SIGMA 18-200mm F3.5-6.3 DC OS HSM Only for Nikon Mount Currently
  212. Sigma 18-50mm F2.8 EX DC MACRO HSM for Nikon
  213. Sigma 10-20mm protective filter
  214. Sigma UWA 10-20mm
  215. tokina 12-24mm owners..
  216. Sigma EF 530 DG Super
  217. Is this Tamron 28 -75mm f/2.8 Soft ?
  218. is Tamron 70-200mm f2.8 out?
  219. Sigma 15-30mm Nikon Mount
  220. Sigma 17-70mm f/2.8-4.5 OR 17-50 F/2.8 ?
  221. Tokina Nikon mount lens on offer at Cathay
  222. SIGMA Flash for A100!
  223. Advice and comments for 400D with sigma APO 70 - 300mm MACRO
  224. 40d and tamron 17-50/2.8
  225. Sigma 70mm lens
  226. CPL and ND 8 for Tokina 12-24mm
  227. Sigma 100-300mm F4 EX DG HSM
  228. tokina 50-135mm f2.8 lens
  229. Any reviews on the Sigma 12-24?
  230. Sigma 10-20mm HSM
  231. UV filter for Tokina 12-24
  232. Sigma 50-150 or Tokina 50-135
  233. Sigma Lenses. How Good?
  234. SIGMA 18-200 Lenses for A100
  235. is Tamron 90mm macro good for portrait ?
  236. Sigma AF 12-24mm vs. Tokina AF 12-24mm vs. Nikkor AF-S 12-24mm
  237. Has Tamron launch this lens (SP AF70-200mm F/2.8 Di) yet ?
  238. SIGMA 100-300 F4 EX HSM APO IF Lens
  239. Sigma EM-140 DG Macro Flash
  240. Tamron
  241. Sigma 18-50mm f/2.8 macro vs Tamron 17-50mm f/2.8
  242. Advise Needed on Sigma lense: =)
  243. sigma 30mm 1.4
  244. Calibration of Sigma lenses?
  245. Sigma lens
  246. Sigma DP1
  247. Feedback of Tokina AT-X 165 PRO DX
  248. Tamron lens for Nikon F4
  249. 18-200mm Lens, Sigma or Tamron?
  250. is this consider sharp from tamron 17-50mm 2.8 ?