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Double Glass Optic

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Product Description

This multi-coated optical glass doublet is our most popular optic, providing a tack-sharp Sweet Spot of focus with a minimum of diffusion at all aperture settings. Part of the Lensbaby Optic Swap System.  

The Double Glass comes with an f/4 aperture disc included.  If you have not previously ordered a product with the full aperture set included and would like to use more than the f/4, be sure to add the Replacement Magnetic Aperture Set to your cart.

Do NOT order the Double Glass Optic if you are also ordering a Composer, Composer Pro w/ Double Glass or a Muse w/ Double Glass. These lenses come with a Double Glass Optic installed.


  • Focal Length: 50mm
  • f/2 optic with f/4 aperture included
  • Low dispersion, high refractive index, multi-coated optical glass doublet 
  • Ships with clear plastic storage case and removal tool
  • 1.75" (4.44 cm) x 1.37" (3.5 cm) 
  • Compatible with the Composer, Composer Pro, Muse, Control Freak, Scout and Spark

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Product Reviews

  1. Tack-sharp and super soft

    Posted by Kasia-D on 9th Aug 2011

    Starting to explore the Creative Effects System Kit this is my fave lens so far. With or without aperture disks it creates tack-sharp sweet spots and super soft, artistic vignetting - I'm having fun and the critique is very positive. Combined with the macro adapters it was as sharp as a dedicated macro lens - just keep your hand and eye steady.
    The eLearning videos on the Lensbaby site have given me inspiration to try people shots and the first results, after some experimenting, were stunning!
    By the way, I probably fall into the creative yet conservative semi-pro photographer who still likes to have a tack-sharp sweet spot.

  2. Sharp Sharp and Sharp

    Posted by Gene on 21st Jun 2011

    This is the lens I use 95% of the time with my Composer. With the f/8 disk there is just the right amount of fall off for slight vignetting and is as sharp as a $1000 lens in the sweet spot. Just a super optic and a wonderful portrait lens.

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