Sigma launch world first 28-45mm f/1.8 full frame zoom
Today Sigma announced their latest E and L mount DG DN Art series wide to standard zoom with a constant maximum aperture of f/1.8. The focal length range from 28 to 45mm on 24 x 36mm full frame covers 75° to 51°.
It’s a large lens taking 82mm filters as does the new 24-70mm f/2.8. It is six inches/151mm long and and does not extend during zooming. It weighs 950g (E-mount) and focuses down to 30cm for quarter life size 1:4 close-ups at 45mm. It has 18 elements in 15 groups, with three aspherical and five super-low dispersion.
No previous mirrorless lens from Sigma has been similar but two have a good reputation in DSLR fit, from 2015. The 24-35mm ƒ2 DG HSM Art weighs only 20g less, takes the same filter size and is smaller by the difference between mirrorless and DSLR body depth. The 18-35mm ƒ1.8 DC HSM Art is for crop format (1.5-1.6X) not full frame.
The 28-45mm comes with a new type lens hood, front and rear caps and a padded zip case. It goes on sale on June 20th for £1299 inc. VAT, UK retail. Sigma claim ‘sharpness and clarity comparable to that of a prime lens throughout its entire zoom range’. A de-clickable physical aperture ring stops the 11-blade rounded diaphragm down to f/16. A function button, AF-MF switch and zoom lock complete the controls.
Our review of the 24-70mm f/2.8 DG DN Art will appear in the July/August edition of Cameracraft, it’s being tested right now. First impressions: crystal clear images, good handling for a large zoom, usual top-grade Sigma case/strap/new-type hood and excellent value. We expect the 28-45mm to appear in a later issue.