1. Is there any reason to choose the Canon 18-55 over the 18-135?

  2. Will a Sigma 18-200mm F3.5-6.3 DC lens interfere with the mirror in a Nikon F70?

  3. What does lens flare from catadioptric (mirror) lens look like?
  4. Pictures of surfers start in focus then go out of focus?
  5. How can I remove a piece of dirt from inside the lens system of a compact camera?

  6. Small haul of Pentax gear, what have I got here?

  7. Telephoto lens: is optical stabilization important?
  8. Can my Yashica Super Yashicon 800mm f/8 lens be fixed?

  9. Which is the better lens: Canon 28-105 or 28-135?
  10. Will a AF VR_Nikkor 80-400mm 1:4.5-5.6D lens work on a Nikon D3400?

  11. Why do Canon lenses stay wide open when off camera, but Nikkor lenses keep tight aperture?

  12. How do camera body motors compare to in-lens motors for focusing?

  13. Filter for Sigma 150-600mm F5-6.3 DG OS HSM | C lens

  14. EF-S 55-250mm f4-5.6 IS II or Tamron AF 70-300mm f/4-5.6 Di LD Macro as part of a kit?

  15. Determining the size of the smallest resolvable detail for a given camera

  16. Decrease the focal length of lens
  17. What is the purpose of the little metal cylinder the focus ring of certain FD lenses?

  18. Where can I find information on the Pentax Q lenses serial protocol?
  19. How to know if a lens will work for my camera

  20. What filter size and lens hoods do I need for my Nikon 18-55mm and 55-200mm lenses?
  21. What caused the rainbow artifacts in the shadows in this image?

  22. Why does fungus form in lenses, and how to get rid of it?
  23. What fuzzy/glitchy around edges effect/artifact is this? & How can it be achieved?

  24. Is super zoom lens the best option for travel photography?

  25. error on lens or camera?
  26. What type of lens element is this?

  27. Should I borrow a wider or more narrow zoom lens for a trip to Antarctica?
  28. How powerful of a telephoto lens do I need to take a picture of a swan from 300-500 meters away?

  29. My lens won't settle on a focus point after dropping it — how bad is the damage?
  30. Which lens is mounted in this D800?
  31. Confused about T-stop number. Does it account for crop factor?

  32. Taking lens off without turning camera off
  33. Why do I get blurry pictures when I take a lens attachment off?
  34. Where can I find 4x, 8x, and 12x lens adapters for a 30mm ring size wearable camera?

  35. Nikon 16-85 VR focus noise problem?
  36. Average Astigmatism for Canon 70-200 F2.8l ii IS
  37. Why many professional movie lenses have so few aperture blades
  38. What is an ultra-wide lens?
  39. FX & DX Lenses on DX Body
  40. Is there a lens adapter for a Pentax lens to a Canon AE-1?
  41. Confused about different optical zoom on different lens
  42. Focus of lens dropoff from center to ends

  43. Can I use a EF lens on my Canon 7D camera?
  44. looking for an adapter between Zeiss Planar (C/Y) & Nikon F Mount good for portraits
  45. What would be a good lens for indoor team photography and individual
  46. Do those photos show clear evidence of a dirty or damaged lens?

  47. Is HB-N106 the only hood suitable for Nikkor AF-P DX 18-55 VR lens?

  48. Will I not be able to AF with a 2× teleconverter?

  49. What lens to do closeups on Nikon D7100?
  50. Kiron lense on a Canon EOS camera
  51. Which step ring do I need?
  52. Camera Lens Suggestion for D7200

  53. How do I decide between the Canon 55-250mm or 70-300mm + 50mm?
  54. Why are there no autofocus tilt-shift lenses? or, why do tilt-shift movements appear to be incompatible with phase-detection autofocus?

  55. Largest physical aperture lens that focuses to 0.5m

  56. Lens optic jumping between 17-24 on Sigma 17-70 f/2.8-4 DC Macro OS HSM

  57. What's the opposite of a fisheye lens?

  58. Would I be able to use the Canon 600d with 58mm dia thread with a Canon EF 50mm f/1.8 STM

  59. Which lens to use on which camera for wildlife photography?

  60. What causes my camera to lose contact with my lens?

  61. What is an electromagnetic diaphragm?

  62. How do Canon's EF 35mm ƒ/2 and EF 35mm ƒ/2 IS USM lenses differ?

  63. Is it possible to use a nikon fx lens (no autofocus) on a nikon dx body (no autofocus motor) together?
  64. Can I change the lens of my film SLR even when a film is loaded?

  65. Is focal length internal or external?
  66. Repair shop says my dropped Sigma Art lens is a write-off — but can I fix it myself?
  67. Why am I getting an "ERR" while using my Nikon 50mm 1.4G lens?
  68. Is focal length measured relative to the sensor or the lens?

  69. How does the Canon EF-S 15-85 IS USM compare to the EF 24-105mm L as an all-around lens?

  70. Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range?
  71. Universal solution for wide focus length DSLR camera in 2017

  72. Origin of the sound / noise made by some stabilized lenses?

  73. Zeiss Jena zoom lens - what have we here?

  74. How does the Tamron 70-200mm F/2.8 without VR/IS compare to the Nikon 70-300mm F/4.5-5.6 VR?

  75. Does Canon make an L series lens with a plastic lens mount?

  76. What is exactly the '3D pop' in photography?

  77. Choosing one Camera Lens for Multiple FOVs

  78. What CCTV lenses can I use with Micro 4/3 and adapter?
  79. How important is lens selection for getting a retro, film look?

  80. At which point is a lens 'too old' to consider buying?

  81. Best lens for landscape photography on a crop-sensor body (APS-C)

  82. Rokinon 16mm f2 or Rokinon 16mm T2.2 for Canon EOS 450D

  83. Wide Angle Nikon Fit FX Pancake Lens?

  84. Does using an adapter on lenses affect the quality of the image?

  85. Why are objects far away inverted through a lens but not through the viewfinder?
  86. 70-300mm lens with Nikon D3400
  87. Long object photography

  88. Buying a sony a6300 with what lens?

  89. Are lens hoods a must?

  90. Preventing (Powershot) lens error

  91. What's the intended use of lens with f-numbers close to or "faster" than f/1?

  92. Will a filter cause more or less damage when lens is dropped?

  93. How does lens-hoods for pancake lenses work? (Canon EF 40mm with ES-52)

  94. Using analogue Takumar 28mm & 50mm AND digital Nikon 4500 WA lenses for the Olympus E-M10 Mk II camera in MACRO Photography

  95. What is this 25-100mm lens with a 1 inch diameter mount?

  96. How to fix the phenomena where photos add 5 / 10 lbs or kgs to your face?
  97. Dooes having a drone really let you get certain photographs you couldn't take otherwise, justifying the high price?

  98. Dust-like speck visible every few pictures — is it dust, or worse?

  99. How do I interpret an MTF Chart?

  100. How can I get my D3300 to focus correctly with my new lens 17-50mm?