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Sigma Conversion Lens FT-1201

BH #SIAM4900 • MFR #AM4900
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Sigma Conversion Lens FT-1201
Key Features
  • Dedicated to dp3 Quattro Digital Camera
  • 1.2x Magnification
  • Converts dp3 Lens to 60mm (90mm Equiv.)
  • Four Elements in Three Groups Design
Extending the effective focal length of the Sigma dp3 Quattro's lens by 1.2x, the Conversion Lens FT-1201 brings the 35mm equivalent focal length to 90mm without affecting the f/2.8 maximum aperture setting. Four glass elements in three groups help to maintain image quality and a rear gelatin drop-in filter holder is also incorporated into the seamless design.
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Sigma FT-1201 Overview

Extending the effective focal length of the Sigma dp3 Quattro's lens by 1.2x, the Conversion Lens FT-1201 brings the 35mm equivalent focal length to 90mm without affecting the f/2.8 maximum aperture setting. Four glass elements in three groups help to maintain image quality and a rear gelatin drop-in filter holder is also incorporated into the seamless design.

1.2x conversion lens effectively extends the dp3's 50mm focal length to 60mm, which is equivalent to 90mm in the 35mm format.
Four elements in three groups design helps to maintain the original image quality.
With the conversion lens in place, the minimum focusing distance is lengthened to 11.6" and the maximum magnification ratio is 1:3.6.
UPC: 085126931315

Sigma FT-1201 Specs

Lens Construction
4 elements in 3 groups
Magnification
1.2x
Minimum Focus Distance
11.6" / 29.4 cm (on dp3)
Maximum Magnification
1:3.6 (on dp3)
Filter Size
Rear drop-in for gelatin filters
Dimensions
2.8 x 2.2" / 70.0 x 54.9 mm
Weight
9.7 oz / 275 g
Packaging Info
Package Weight
0.835 lb
Box Dimensions (LxWxH)
3.85 x 3.7 x 3.7"

Sigma FT-1201 Reviews

How awesome is that?

By Martin
Rated 5 out of 5
Date: 2023-06-25

This weird little item was really hard to find, given that they've been out of production for a few years. I'd love to know how many of them were ever made (if it's over a thousand, I'd be shocked). Anyhoo... B&H had it, in 2023, so I ordered it and had it fastened on my Sigma dp3 by week's end. And now I have basically a macro Foveon, and I'm seriously thrilled. Thanks, B&H!

Nice 90mm Option

By James B.
Rated 5 out of 5
Date: 2017-09-03

Like the other reviewers I prefer the 90mm equiv focal length, and this add on delivers. Because it is glass and metal it is hefty, but balances well on the DP3Q. A couple things: although the instructions say don't mount it on a filter that's attached to the camera lens, I did so without any problems focus issues or loss of IQ. Also, the filter spec that B&H lists is incorrect: there is no drop-in slot at the rear for filters. It takes a 67mm filter or hood or cap at the front end.

See any errors on this page?

question

Can this be used on older DP3M?
Asked by: Anonymous
Thank you for your interest in Sigma products. The Conversion Lens FT-1201 is only compatible with the DP3 Quattro. It is not compatible with the DP3 Merrill.
Answered by: Errol D. Sigma Expert
Date published: 2019-02-03
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