Finding and 18200 lens for my A7 Alpha

Started 6 months ago | Questions thread
darkdirtydwarf
Contributing MemberPosts: 805Gear list
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Re: Finding and 18200 lens for my A7 Alpha
In reply to dave, 6 months ago

dave wrote:

Although the lens is designed for asp-c with a small image circle, zoom lenses will cover the ff sensor at some point as you zoom towards the long end.

I have the A7 and the SEL18200. Forget using it in FF mode.

First of all the lens NEVER covers the full frame (you get a heavy rectangular vignetting on the long end, I assume that's the plastic circuit cover the lens sports on the rear element).

Second, if you check the image at the borders, the details get quickly mushy outside the APS-C crop area. In crop mode though works well, if 10MP is enough for what you're doing and it's very comfortable to use if compare to let's say a NEX5N (my other body).

See here almost at the end of the page:

http://www.google.de/imgres?imgurl=https%3A%2F%2Ffarm4.staticflickr.com%2F3774%2F11805849263_d2ac5924fb_b.jpg&imgrefurl=http%3A%2F%2Fwww.systemkamera-forum.de%2Ftopic%2F102726-sony-sel-18200-sony-a7%2F&h=683&w=1024&tbnid=pbY-WmwnNcbDDM%3A&zoom=1&docid=EAOYGOGzZnsO0M&ei=e8yqU47cBciB4gTstICYAQ&tbm=isch&client=firefox-a&iact=rc&uact=3&dur=552&page=1&start=0&ndsp=39&ved=0CEMQrQMwCw

My cheap FF alternative for now it's a Minolta 28-134 F4. Good enough for a zoom, although a bit slow and without stabilization. 28mm is wide enough (on APS-C you get this field of view with an 18-19 mm lens).

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