Not a few standard lenses are here, all of them can be applicable on SONY E-mount. I got stuck in a swamp of lenses for about 2 years recently. Some of them were produced over 30 years ago and another were done more than half a century ago. Thank to the development of the technology in Digital Imaging sensors, we can see their Physical capability at that time so clearly on our LCD, it's a great fun for me at all. Utilizing our Digital camera as a Lens Optical measuring equipment, so apparently we can see the performance in stead of some expensive dedicated experimental equipment. Every produced lens product has their own character that differs each other.
On the other hand, recent lens production has the least disadvantage reducing lack of edge light source, resolution and sharpness with some high price. Lens Baby is a extraordinary character to show far inferior edge resolution, this is an intentional design. The specific design to reproduce only the central area is the way to be invited by some photographers for consolidation of central area in the picture.
As for my own opinion, concepts that form the basis of lens design had been established over 50 years ago and they are prevailing even now. I have no idea to purchase high priced lensed produced recently.
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