Thank you Michael and Dave.
I like my current set up for ease of use and
pretty much less than 2 lb and it is very portable and I can grab and shoot quickly.
And I
prefer quicker reaction in Av metering without stop-down and the M42 lens or an 'A' lens will do that. The Av mode, allows me to concentrate on the framing and panning when needed. I hear the plane after the cooper hawk this morning.
And I
practice on panning distant plane flying. It gives me the instant thrill to follow the plane in action. My 400mm combo usually does poorly for infinity object, perhaps I have good lighting today and that really helps in the shooting as I can stop down to f/8 and still have reasonable shutter for the panning. I used my K mount 200mm f/3.5 on Komine before on similar shooting and after the stop-down, the plane may have already turned to a different direction.
Soligor 200mm f/2.8 m42 +
Kiron 2x doubler
cropped
1/125 sec, f/6.3, 400mm, iso 200, 0 Ev
1/125 sec, f/6.3, 400mm, iso 200, 0 Ev
heavily cropped
bird is way too far
1/1600 sec, likely f/5.6, 400mm, iso 100, -0.7 Ev
I hope I can find a good prime or zoom in
400mm f/5.6 that is both
hand-holdable and offer
better IQ that I can depend less on the TC. As of now, I have these choices in manual focus:
- Sigma or Tokina 400mm f/5.6 in manual focus with 'A' setting -- about 1010g in Tokina
- SuperTak 300mm f/4.0 in m42 -- about 985g
- Pentax 300mm f/4.0 in K mount -- about 1020g
- Pentax M*/A* 300mm f/4.0 in K mount -- lightest about 850g
- Pentax K 400mm f/5.6 (or the Takumar 400mm f/5.6 equivalent in m42) -- about 1285g in K version