I find that a stout ball head works fine for shooting birds. My D FA 150-450 plus DA 1.4X on the K-1 with battery grip balances nicely and the ball head allows ample movement. My Arca plate is long enough to allow about an inch of adjusts.
Paul > On Dec 28, 2020, at 1:00 PM, Sasha Sobol <[email protected]> wrote: > > Wibmerly mh-100 is not very expensive (this my main “ball head” now). > > Sasha > >> On Mon, Dec 28, 2020 at 9:48 AM Godfrey DiGiorgi <[email protected]> >> wrote: >> >> I don't worry too much about the balance. If you have a ball head capable >> of properly supporting a longish lens, it should lock securely no matter >> what. >> >> A ball head is not generally the best for a long tele lens. I've used one >> with my mirror 600mm because it's light and short, but it's suboptimal. The >> one I like to use the most is the Arca-Swiss Monoball P0 Hybrid ... this >> allows me to rough in a position and then adjust the position with >> precision using the two goniometers and rotating top mount. But it's an >> expensive head (about $900). It works well for astrophotography of bright >> subjects (the Moon and Jupiter, for example) where I can usually get away >> with a sunlight exposure... If I were doing long exposures with dim >> subjects, I'd buy an equatorial clock drive mount. >> >> For a 400-600 mm refractor lens like the big Pentax guns, a gimbal mount >> is the right support. And with these, getting the balance point adjusted >> close to the center of mass makes it easier to control them as they are >> designed for movement and panning ... a long mounting plate helps. (The >> plate I have for my Olympus 50-200mm lens (often used with the matched 1.4x >> teleconverter so an effective 560ish mm lens) is about seven inches long >> because that lens telescopes about 5 inches through the zoom range and I >> often want to adjust it if I'm trying to track a moving subject. I use the >> Acratech GP1 head in a "limited" gimbal mount orientation for that lens. >> >> G >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. >> > -- > --Sasha (from phone) > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

