SMC Pentax-FA 43mm f/1.9 Limited Lens

SMC Pentax-FA 43mm f/1.9 Limited Lens: Features

The standard lens for a given format is usually taken to be the diagonal measurement. In the case of 35mm film that would be 43mm, hence the logic of providing a 43mm lens. Comprising 9 elements in 7 groups this would suggest a very high level of corrections. On DSLRs this 43mm of course is a 35mm-equivalent of 64.5mm, a relatively unusual focal length.

Although not a telecentric design, where the exiting light rays are as parallel as possible, as we are using only the centre of the field for APS-C sensors this may not prove to be a problem.

The lens is diminutive in size and weighs just 155g, despite its metal construction. The finish is of a very high standard, with beautifully rendered engraving of a very superior sort. The lens cap is a deep metal push on design, again in aluminium, and is lined with plush green velvet. It fits snugly and securely onto the rim of the provided metal lens hood. This hood is deep and effective and can be considered an integral part of the lens. It can be removed to allow the fitting of 49mm filters.

There is an aperture ring on the lens and coverage is full frame. For the DSLRs the ring is set to “A” to allow full functionality.

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