Finding and 18200 lens for my A7 Alpha

Started Jun 23, 2014 | Questions thread
dave Senior Member • Posts: 1,355
Re: Finding and 18200 lens for my A7 Alpha

ksarkar77 wrote:

darkdirtydwarf wrote:

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:

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).

Does SEL18200 OSS work on A7 ?


Apparently this one only works in crop mode. It is a 11 to 1 zoom ratio which probably accounts for the small image circle. Someone has surely tested all of the e-mount zooms. Maybe the short ratio 10-18 is the only one that works on FF.

-- hide signature --

Sony A7 Pentax K5ii Canon 5D

 dave's gear list:dave's gear list
Pentax K-5 II Sony Alpha a7R II Pentax smc DA 16-45mm F4 ED AL Rokinon 14mm F2.8 IF ED MC HD Pentax DA 55-300mm F4.0-5.8 ED WR +7 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow