I was experimenting with Aperture and Shutter priority modes, fixed or auto ISO and need more experimenting but leaning towards shutter and fixed ISO. The lens is compact and light and with the camera held in my right hand I was resting the lens hood on my index and middle finger of my left hand and using my thumb and ring finger to rotate the thick ribbed focus ring. There is a very fine/minute tolerance between in and out of focus but with 'Focus Peaking' turned on, it was relatively easy to know when it was in focus as the edges of the image started flickering white. That works fine with an 'Electronic View Finder' but with a DSLR with an 'Optical View Finder'. ??? As with my 500mm/Reflex lens, the colours out of the camera are muted and need to be returned in processing, shooting in RAW is preferable for this, and the background Bokeh is not to everyone's taste and there is vignetting which can be corrected in processing or turn up the Exposure Bias on the camera. All photos taken hand held with a Sony A-3000/Sony NEX-6 and the weather was far from ideal being dark and cloudy and after a first use It was like the old day's in having to manual focus and the lens has potential.
The Samyang 300mm f/6.3 ED UMC CS Reflex Lens is designed to fit the Canon M, Sony E, Fujiifilm X Compact Systems Camera. It's a catadioptric or 'mirror' lens, which allows it to be very small and light for its focal length, but restricted to a fixed aperture of f6.3. It's a manual focus lens providing a 300mm focal length (35mm (crop sensor) equivalent = 450mm) with a robust metal and plastic construction with the lens featuring 9 elements and 6 optical groups, including one Extra-low Dispersion element to compensate for color fringing especially at high magnification. The latter together with Ultra Multi Coatings providing high contrast and reducing chromatic aberration. Samyang announced in April 2014 that a version of this lens will be made available for DSLR cameras.
PART 1 - FIRST IMPRESSIONS ~ 29th April 2014
Time and Technology March On Together as they say and in the case of manual focusing it has become a lot easier using the Samyang 300mm lens due to Technology with Manual Focus Assist and Focus Peaking. With the AF/MF toggle switch on the A6300 assigned to it as it’s easy to access with my thumb, MF Assist takes a crop of the sensor and magnifies the subject image between 5.9x and 11.7x respectively to help with focus when viewed through the Electronic View Finder or LCD screen. Downside is that any movement of the camera and lens is also greatly magnified. Focus Peaking works by detecting edges of highest contrast in your scene and therefore the most in focus by highlighting them in a bright color. Used with MF Assist this aids manual focus.
PART 2 - 27th June 2016