It was between a Dallmeyer Pentac and an Aero Ektar on the field of ebay honor and the Aero Ektar won---or rather I won the Aero Ektar as the Pentac blew right out of my budget. My interest in these lenses is for night photography using a 5x7 camera (an Agfa-Ansco Universal) Any barrel lens for under $40 isn't too bad a deal I figure, and I've got a lensboard with a big honkin' hole the beast may or may not fit.I suppose I'll have to make a concrete and lead box to keep it in (or do I need a permit from the nuclear regulatory conmmission?) but aside for being a fast lens and perhaps loosing a few stops due to staining from the effects of hot glass (though this one sems pretty clear from the pictures---I've seen some that look like the color of tea) I don't really know much about the things. My main concern is will it illuminate a 5x7 gg? I know they were designed to cover 5x5, but do they have mechanical vignetting to limit coverage? I'm not too concerned about the corners being mushy. Any thoughts? Ideas? Suggestions?
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