Hello
Does anyone here own this Russian version of aero ektar?
If so, can you confirm is the glass yellow tinted?
Regards. Aleksi Koski
Hello
Does anyone here own this Russian version of aero ektar?
If so, can you confirm is the glass yellow tinted?
Regards. Aleksi Koski
http://www.photohistory.ru/1214755009023752.html
Filter, perhaps?
Hmm. Would you be eBay seller aero-ektar-alternatives? Would this http://www.ebay.com/itm/OF-233-210mm...-/321468609393 be your listing? Would you have received this
negative feedback on July 24?lens internal elements severely yellowed seller is denying refund at this moment
If it is yellowing due to radioavtive glass, that can usually be cleared with UV light.
I had one a few years back and its glass was yellow, but it was a light yellow, not the brown-yellow I have seen with thorium glass.
From a physics point of view, it's a lot easier to build a high-resolution lens for one specific wavelength than for the entire spectrum, and yellow seems to be the best wavelength for aerial recon. So, instead of making these with a detachable yellow filter like most US aerial lenses, they colored the glass? If so, the lens is OK for B&W portraiture and landscape, but useless for color.
It's not actually a yellow filter, more like warm tint (something like a 81a filter). It comes with a detachable filter. Works just fine for color, same as Aero Ektar whit tinted glass.
The lenses whit inbuilt yellow filter look completely different.
Liket this:
http://www.ebay.co.uk/itm/Air-Minist...-/191262250401
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