The samyang 16mm f 2 lens is slightly soft at f 2 but rather evenly so across the entire frame.
Rokinon 16mm f 2 0 full frame.
Click here to view a larger version the rokinon 16mm f 2 is a very special lens because it is one of the first wide angle fast aperture primes ever made specifically for aps c crop sensor dslr cameras.
Mf digital photo.
A fast maximum aperture of f 2 0 is effective in low light shooting and provides shallow depth of field.
Rokinon 16mm f 2 ed as umc cs.
It provides a 79 5 angle of view which translates into a 35mm format equivalency of 25 6mm.
Aps c dx 77mm.
The 16mm f 2 0 ed as umc cs lens from rokinon is a manual focus wide angle lens compatible with aps c format dslr digital cameras.
Can properly cover full frame sensors equivalent in size to 35mm film 36 x 24mm as well as smaller aps c and mft size sensors.
The laowa 12mm f 2 8 rokinon 14mm f 2 4 samyang 14mm f 2 8 nikon 14 24mm f 2 8 and irix 15mm f 2 4.
It provides a 79 5 angle of view which translates into a 35mm format equivalency of 25 6mm.
Stopping down to f 2 8 makes a significant improvement in sharpness especially in the center of the frame.
Here i ve tested five popular wide angle lenses for astrophotography.
A fast maximum aperture of f 2 0 is effective in low light shooting and provides shallow depth of field.
Before getting started i d like to mention that this only covers a small sample of the total number of good astrophotography lenses out there.
How do they compare.
The center of the frame is very sharp at f 2 8 and even slightly sharper at f 4.
Until now if you wanted a lens faster than f 2 8 and wider than 35mm your only options were the expensive 24mm full frame primes used on full frame cameras.
The 16mm f2 0 ed as umc cs 499 is just one in rokinon s line of affordably priced manual focus lenses for slrs and mirorless cameras it covers a very wide field of view and opens up all the.
Focus is achieved without any lengthening or rotation of the front lens element.
Another couple inches of length are added with the hood but only about an ounce or so of weight.
3 27 inches 84 millimeters wide 3 42 inches 86 millimeters long with a moderate weight of 20 ounces 571 grams.