Review on ZTIANFOTO Mount Camera Fisheye A7SIII by Eric Timbeross

This lens has proven to be a pretty cheap option for me for a decent wide angle shot, but it definitely takes some work and requires shooting in RAW mode. I was looking for a cheap wide-angle lens to take some photos of my home and tried the $15 wide-angle adapter, but unsurprisingly it turned out to be junk. This was my next cheap option, so I decided to give it a try. Attached are three pictures of my Sony A5000 (which wasn't specifically listed as compatible but uses eMount so I tried anyway). First shot with factory lens 16-55 mm at 16 mm. There's a slight barrel distortion and vignetting, which are automatically dealt with when shooting in JPEG format. Second raw shot with this lens. When I first saw the image from this lens I thought it was useless but I was in a bind and really needed to take some photos that day so I decided to fix it in the process. To my surprise, I found that using RawTherapee's (free software) Flat Field Corrector is very easy. . I spent no more than 30 seconds on this proofing photo, literally holding a piece of printer paper in front of the camera under a standard overhead light just to see if it would even work. To my surprise, the result was acceptable. In the future I'll spend a little time getting a better base shot and tweaking the processing to get a better result, but this worked incredibly well and was very fast at a pinch. In RawTherapee, it's fairly easy to set up a processing profile to apply this correction, as well as a lens distortion correction to compensate for barrel distortion. It is then very easy to apply the profile to multiple shots in the batch. The last image shows the processed image after flat field correction and with distortion correction at a maximum value of -0.5. There's still a bit of distortion and a hint of coloration around the edges, but I feel like a little time to tweak (namely a better base photo for flat field correction) can yield even better results. a few photos that day and it helped me in a pinch. It's certainly not an incredible pro lens, but for eighty bucks my results were great. I'll definitely stay away from it as the correction processing is easy to do and gives a pretty decent field of view for indoor shots. The only other review I see at the moment doesn't have the same color vignetting so it might have been the particular lens I got but it worked for me. Please excuse the fact that all of these example photos were taken in low light in a rush to write a review and on their own are noisy and not very good. :)