Free Shipping on ALL Products

Support this site by shopping at the stores below or at our affiliate shopping page


  Sony Alpha Macro and teleconverter lenses
 
 

Macro lenses are designed for photographing small subjects at close range, such as flowers or insects. All lenses can take close-up photos, but Macro lenses are optimised for it, and are able to produce much better results.

 

Typical macro lenses have focal lengths between 50 and 100mm and can also be used for other subjects, although they are designed to perform best at close range.

Remember to take your camera's field-reduction factor into consideration. Sony's APS-C models like the A100, A200, A300, A350 and A700 have a field-reduction factor of 1.5x which means all lenses have their focal length effectively multiplied by 1.5 times - so the 50mm Macro lens will deliver an equivalent field of view of 75mm. Note the DT 30mm f/2.8 SAM Macro is not compatible with full-frame bodies.

 
 

Teleconverters are compact units which fit between a lens and camera body to multiply the focal length. A 2x teleconverter will multiply a lens focal length by two times, allowing, say, a 200mm lens to deliver the same field of view as a 400mm. This saves you from buying or carrying two lenses.

Teleconverters can work with almost all lenses, but are designed to work best with telephotos. Note a handful of lenses may not be compatible with teleconverters, so check before buying.

 
 
 

The downside to teleconverters is a slower focal ratio. If you use a 2x teleconverter, both your focal length and your smallest f-number will double. So if you had a 300mm f2.8 lens, it would become a 600mm f5.6 lens. This represents two stops difference, which means an exposure four times slower. A slower focal ratio can also cause problems for some autofocus systems which tend to only work at f5.6 or brighter. So if you use a 2x teleconverter on an f5.6 lens, it will become an f11.2 model with manual focus only.

Sony offers a 2x and a 1.4x teleconverter. The 1.4x model clearly won’t extend the focal length as much, but only results in the loss of one stop – so you’ll only need an exposure twice as long. A 300mm f2.8 lens with a 1.4x teleconverter would therefore act like a 420mm f4 model.

For a full explanation of lens specifications and examples of coverage at different focal lengths, check out our Camera Labs Lens Buyers Guide.




 
SAL30M28 DT 30mm f/2.8 SAM Macro

     
Focal length: 30mm
Aperture: f2.8
Lens mount: A-mount
Equiv on APS-C DSLR: 45mm
Full-frame compatible: No
Anti-shake: No
AF motor: SAM
  Closest focus: 12.9cm
Filter thread: 49mm
Lens hood: not supplied
Construction: 6 el. / 5 groups
Diaphragm blades: 7
Weight: 150g
Size (diam x length): 70x45mm



   
SAL50M28 50mm f/2.8 macro

     
Focal length: 50mm
Aperture: f2.8
Lens mount: A-mount
Equiv on APS-C DSLR: 75mm Full-frame compatible: Yes
Anti-shake: No
AF motor: requires AF motor in DSLR
  Closest focus: 20cm
Filter thread: 55mm
Lens hood: N/A
Construction: 7 el. / 6 groups
Diaphragm blades: 9
Weight: 295g
Size (diam x length): 72x60mm


   
SAL100M28 100mm f/2.8 macro

     
Focal length: 100mm
Aperture: f2.8
Lens mount: A-mount
Equiv on APS-C DSLR: 150mm
Full-frame compatible: Yes
Anti-shake: No
AF motor: requires AF motor in DSLR
  Closest focus: 35cm
Filter thread: 55mm
Lens hood: ALC-SH0007
Construction: 8 el. / 8 groups
Diaphragm blades: 9 (auto) / 10 (manual)
Weight: 505g
Size (diam x length): 75x99mm


   
SAL14TC 1.4x teleconverter

     
Lens mount: A-mount
Full-frame compatible: Yes
  Construction: 5 el. / 4 groups
Weight: 170g
Size (diam x length): 64x20mm

   
SAL20TC 2.0x teleconverter

     

Lens mount: A-mount
Full-frame compatible: Yes

  Construction: 6 el. / 5 groups
Weight: 200g
Size (diam x length): 64x44mm


Complete Sony lens range / Camera Labs lens buyers guide / Camera Labs lens reviews



All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs