Mounting SAL70400G SSM on Sony HVR- Z7E HDV camcroder

[niallswand]

Why does this (and others) come in colours like that? Silver, white etc - when all the smaller ones are black?

[gerSick]

First of all it is eye candy.

Also it is said to reduce heat up metal extension of tele Lenses.

I think Canon started to use white.

Minolta (that's SLR dep. is now Sony alpha) , always trying to be more than nr. 3, did copy this very soon.

Nikon is all black.

Sony does use white with two G Lenses they took over from Minolta (f2.8 70-200 and f2.8 300).

The silver one is the first non black Sony Lens design.

Possible that Sony uses only silver (ugly!) in the future for high grade lens.

[FXerGerFra]

Its a tradition they took over from Minolta.

This lens was mainly developed for the DSLr market like the 70-200 2.8 G SSM, too.

The tradition started whit the Minolta AF-Lenses I think the first lens to be white AF were the AF 300 F2.8 and the AF 200 F2.8 back in 1985. (It has only bee done whit big tele Lenses, whit smaller lenses you would have risked Light reflections wich could be crual.

[Drinapropriatetouch]

@niallswand its a heat reflection thing, when the lens heats up say in bright sunlight, the materials expand and change the performance of the lens. if that makes sense.

[dvamateur]

Wow! This must give like 40 times magnification, right?

[SonyAlphaSupport]

the adapter + format factor imply a 7x magnification so that in total you get a 35mm equivalent focal length of 2800mm.

[Drinapropriatetouch]

@dvamateur I wish people didn’t talk in 'x by' that’s just arbitrary, its 70-400mm and that’s what it is.