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Detailed review of the Laowa 20mm f/4 shift lens by Keith Cooper.
The lens is available in a range of mount options Canon EF and RF, Nikon F and Z, Sony E, Pentax, L, and Fuji G - the RF version is tested here, but the optics are the same for all mounts.
The lens is a fully manual shift [only] lens, so no tilt.
Keith discusses the lens, how it performs, and has a run through of the many ways lens shift (aka rise and fall) can be used.
There is a more detailed written review of the lens, which includes many more sample images at: www.northlight...
Keith has also reviewed the Laowa 15mm f/4.5 shift lens:
www.northlight...
00:00 Start
00:27 Notes for viewers unfamiliar with shift lenses
00:43 Lens design and construction
02:22 The shift mechanism
02:45 Mount differences
04:50 Specifications
05:09 No electronics - fully manual
06:44 Front element and filter options
07:34 Adjustable lens hood
08:50 Flare and aberrations
10:20 Image quality
12:55 How shift works - rise and fall
15:19 The power of stitching
16:07 Dealing with parallax
17:38 The versatility of diagonal shift
20:21 Image quality falloff
21:32 Shift and horizontal perspective
23:37 Conclusions about the Laowa 20mm shift lens
24:30 Is shift only an issue - what about tilt?
25:52 Future testing
There are more articles, videos and reviews covering the use of tilt and shift lenses: www.northlight-...
Keith's book about how to use such lenses is widely available
PHOTOGRAPHY WITH TILT AND SHIFT LENSES
www.crowood.co...
ISBN: 9781785007712
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