The latest edition of f2 Cameracraft contains our reviews of the Voigtländer 10mm and 15mm lenses, and also a review of the superb new Tamron SP 85mm f/1.8 VC and 90mm f/2.8 SP Macro VC lenses, plus Sigma’s 20mm f/1.4 and 24-35mm f/2 – all tested on the Sony A7R II which we use for . . . → Read More: f2 Cameracraft latest issue out now
In interviews about the new micron-accurate aspheric lens element moulding process used to increase the resolution of the latest Sony G Master lenses, a visual has appeared which shows the ‘onion ring’ effect that coarser mould machining causes in lens elements.
Working independently, I’ve been aware of this for years – and I have used . . . → Read More: Sony’s precision aspherics
It’s been a while since my last review of Sony products here, and not because I have been inactive. The truth is that I’ve spent so much on Sony kit 24/7 working has been necessary, including a good few reviews and tests of the A7RII and lenses appearing elsewhere. It’s a real issue, I now . . . → Read More: Low-cost macro for the A7 series
We’ve had news of the new Sigma Art HSM high speed wide angle full frame zoom – 24-35mm f/2.
It will be available in Nikon, Canon and Sigma mounts only (release date not yet confirmed) according to Sigma in the UK.
Note that this will be a bit of monster with its 82mm filter . . . → Read More: No FE or A mount for new Sigma 24-35mm f/2
SIGMA is going to start a new “Mount Conversion Service” which will enable Sigma to convert the mount of customers’ Sigma Art, Sports and Contemporary lenses from one camera fitting to another.
The ranges convertible include the new Sports models such as the 120-300mm f/2.8
“We believe that a lens is not only such . . . → Read More: Sigma launch mount switching service
Sigma Imaging, already one of our favourite lens makers, has announced upgrades and new functions for their entire system which will transform the way it works with all the major camera systems.
The new DC 17-70mm f/2.8-4 – DC (APS-C format) lenses have never been given the EX designation, even when they clearly matched . . . → Read More: Sigma’s system revolution
For almost a decade the Sigma 12-24mm full frame ultra wide angle zoom has been unrivalled by any other makers – not Nikon, not Canon, not Tamron, not Tokina, not Sony. No maker has ventured where Sigma went, to the extremes of over 120° coverage combined with well corrected straight line geometry.
Today, the original . . . → Read More: Sigma ultrawide zooms – old and new 12-24s versus 8-16mm
Sony Corporation announced today it will disclose the basic specifications of its “E-mount” for interchangeable single lens cameras, without fee, to manufacturers of lenses and mount adaptors, starting April 1st, 2011. This was previously confirmed at the photokina press conference – now they have revealed that Carl Zeiss AG, Cosina, Sigma and Tamron will all . . . → Read More: Zeiss, Cosina, Sigma and Tamron – NEX E-mount future
The latest Photoworld edition, No 1 2011, is now available to electronic edition subscribers (Normal or Premium) and is being printed to mail out before the end of January to all print edition subscribers.
The cover shot is by Shirley Kilpatrick, and is an uncropped capture very rapidly taken using the Alpha 550 with . . . → Read More: New Photoworld edition available
Edited from Sigma Japan’s announcement:
Sigma’s lenses for Sony mount may have a potential aperture operation problem when used with the Sony α33 and α55 Interchangeable Lens digital cameras.
To overcome this issue, we will be offering, free of charge, a modification service to our customers who have purchased a Sony α33 and α55 and . . . → Read More: Sigma lens incompatibility with A33 and A55