Aetna Coligon 135mm f/3.5 Auto

The Sony a6400 is the Best Camera I've Ever Used!!! I've been using digital cameras for almost 20 years. I went from a variety of early point and shoot to a Nikon D40 to some of the early Sony Mirrorless cameras (NEX-5N and NEX-5R). When my 5R was stolen last year, I went through multiple cameras trying to find one I liked - I tried a Panasonic GX85 (loved the outside pictures, really struggled to take good pics indoors), a FujiFilm XT-20 and then X-T30 (loved the colors, but indoor pictures never appeared to be properly in focus). After I wasn't satisfied with any of those, I really considered just going back to a point and shoot. However, based on some recommendations on DPReview, I tried the Sony a6400. This is by far the best camera I have ever owned. The AF system on it is unbelievable. Pictures look great in any lighting I have tried so far. I love the lenses I have for it (Sony 18-135mm, Sigma 30mm 1.4, and Sigma 19mm 2.8). The menu system is a little hard to figure out; however I purchased an amazing tutorial by Michael the Maven which has helped. The only downside is I wish it had IBIS, but with a fast lens like the Sigma 1.4 lenses, it still takes great pics in lower light at higher shutter speeds. Fantastic camera!Read full review

Images sharp in the center and fairly poor in the corners and on the edges. I shot the lens at 18mm f8 ISO 100 on my a6000 and the center of the image is very sharp at 100%. The corners are fairly poor and the edges are not much better. I compared shooting the same image with my PZ16-50 and the corners are slightly better on the 16-50. I guess that's to be expected on a $500 kit lens with this kind of focal range. I guess I'm kind of disappointed in the lens. I bought it for the range and stabilization.

Good specs and well priced lens, perfect for travel The lens feels well built compared to my other plastic lenses. The size and weight are very good for the focal length. It is sharp and does not have noticable optical problems. I am impressed by the value. I recommend it for a general use while traveling, the zoom range is flexible and I don't have to switch lenses in the moment. I use another small lens for night.