Tamron was not the only company announcing lenses yesterday. Late last night Sony also announced two new full frame lenses for its E mount system (FE lenses) both mid telephoto primes – the Sony FE 85mm f/1.8 and the Sony FE 100mm f/2.8 STF GM OSS.
B&H had a chance to talk to Mike Bubolo of Sony who explains a bit about both lenses and in particular about the Sony FE 100mm f/2.8 STF GM OSS which is quite unique. A 100mm lens with f/2.8 aperture is very common for macro (Sony does have a very capable 90mm macro mind you) but the new Sony FE 100mm f/2.8 STF GM OSS is not a macro lens. It is a very different type of lens which uses an  apodization filter.
This is not the first AF lens with an apodization filter built in – we looked at the Fujifilm XF56mm F1.2 R APD lens about a year ago which also has the same filter built in (it is a filter which is dark in the corners and less dark in the center – it is used to make the Bokeh looks nicer – you can see some examples in the B&H video above).
The apodization filter of the Sony FE 100mm f/2.8 STF GM OSS
The main problem with Sony’s implementation is the light reduction – while the Fujifilm lens has an f/1.2 (light entering the lens) and a T/1.7 (light reaching the sensor), the Sony has only f/2.8 which goes down to T/5.6 – so you are loosing a hack of a lot of light in the process – making it less than ideal lens for shooting in low light conditions.
The lens does have some advantages – it includes image stabilization, 11 aperture blades and a de-click mechanism for video shooting.
More specs of the Sony FE 100mm f/2.8 STF GM OSS
- Optical design consists of 14 elements in 11 groups.
- Built in apodization filter (f/2.8 ~ T/5.6).
- Optical image stabilization.
- Af motor –Â Direct Drive SSM.
- 11 aperture blades.
- De-ckick mechanism for video (and manual aperture ring).
- Magnification – 1:4 (57cm min focus distance).
- Advanced coatings – Nano AR.
- Moisture-Proof and Dust-Resistant construction.
- Weight – 700 grams.
- Price: $1500.
The second lens Sony announced is more standard but is still interesting mostly due to it’s price point. Here are some of the specs of the Sony FE 85mm f/1.8:
- Optical design consists of 9 elements in 8 groups.
- New AF motor (for improved video work).
- 9 aperture blades.
- Filter – 72mm.
- Weight – 371 grams.
- Price: $600.
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