Petroglyph
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Rokinon 135 f/2 on the Q7 = not easy but pretty fun.
Pros:
621mm FOV and f/2 (Diffraction sets in at around f/4 on the Q7)
Q7 has SR & focus peaking
Pentax K to Q mount adapter has a leaf shutter.
The Rokinon is sharp.
Light weight for a 621mm f/2 (LOL)
Cons:
LCD screen is practically impossible to see in bright sun let alone the focus peaking itself.
No OVF or EVF (Who needs one right?)
621mm shakes around a lot held out away from the body.
Leaf shutter in the adapter is maxed out at 1/1000 (The Q lenses can do 1/2000) & I want at least 1/800 for my often moving subjects so one must operate in a very narrow shutter speed range.
So was I able to get any shots to come out?
One of a bicyclist riding away almost made the cut. The shutter & exposure were correct but I was a bit late with the focus.
Here is the rig:
Q7 K-mount adapter & Rokinon 135 f/2 mounted
This is a target slow enough for me to manual focus on.
That lens is blowing me away no matter what the subject & camera.
Duck family into the sun water sparkles. I couldn't count them until I saw the shot. I count 12 + mother.
Birds hopping around in the trees is a bit more difficult. It is really hard to keep up with focus & they are pretty small on the LCD
Need this guy to come out and pose.
Static (but very far away) object is easier. SR works a bit.
Colours are decent.
Phew! That was hard work. Now I know why I like AF.
Cheers.
Pros:
621mm FOV and f/2 (Diffraction sets in at around f/4 on the Q7)
Q7 has SR & focus peaking
Pentax K to Q mount adapter has a leaf shutter.
The Rokinon is sharp.
Light weight for a 621mm f/2 (LOL)
Cons:
LCD screen is practically impossible to see in bright sun let alone the focus peaking itself.
No OVF or EVF (Who needs one right?)
621mm shakes around a lot held out away from the body.
Leaf shutter in the adapter is maxed out at 1/1000 (The Q lenses can do 1/2000) & I want at least 1/800 for my often moving subjects so one must operate in a very narrow shutter speed range.
So was I able to get any shots to come out?
One of a bicyclist riding away almost made the cut. The shutter & exposure were correct but I was a bit late with the focus.
Here is the rig:
Q7 K-mount adapter & Rokinon 135 f/2 mounted
This is a target slow enough for me to manual focus on.
That lens is blowing me away no matter what the subject & camera. Duck family into the sun water sparkles. I couldn't count them until I saw the shot. I count 12 + mother.
Birds hopping around in the trees is a bit more difficult. It is really hard to keep up with focus & they are pretty small on the LCD
Need this guy to come out and pose.
Static (but very far away) object is easier. SR works a bit.
Colours are decent.
Phew! That was hard work. Now I know why I like AF.
Cheers.