Super-Takumar 28 mm f/ 3.5 Lens

Really impressive construction; short and narrow with that all-metal quality. Very smooth focus too. Very natural rendering with good IQ (I'd rate it a "B" overall).

Weaknesses:

To begin with, it's f/3.5. It also has the front element very much at the front of the barrel, which seems a little exposed.

Comments:

It's a fine lens, but it's hard to get excited about the IQ. Not as good as its 35mm Takumar brothers.

• Image quality
• Very little Distort and CA
• Good standard for APS-C
• Sharp
• Perfect for APS-C filmmaking.
• Precise and smoothly working focusing ring 

Weaknesses:

• Flare (in specific conditions)
• Could be faster

Comments:

I use this lens mainly in videomaking with APS-C dslr. Even though there are faster lenses, this works perfect for me. It has little distortion so you can use it with cheap wideangle adapter (only on APS-C) and still have good quality of image (in my case 14mm equivalent, 22mm for FF ). That is important since you don't have funds for quality wideangle prime, because there is not much cheap and good wideangles for m42. 

Using matte box or simple hood you can easly eliminate flares and achieve proper exposure in front of light source.

Lens is outstandingly precisely built mechanically and you will appreciate working with it.