Re: Air Show Advice Needed
1
paul cool wrote:
Trevor Carpenter wrote:
icexe wrote:
I think you would just be throwing a very expensive solution at a really simple problem. Just try leaving the lens locked at infinity next time. Planes in the air are going to be at the farthest focus distance of the lens anyway.
I have my doubts re the infinity solution. It's not unknown to get DOF issues especially at the long end which suggests that infinity is beyond the normal air show distance. Paul Cool has a couple of great examples in this thread which suggest that infinity is not a good idea.
https://www.dpreview.com/forums/thread/4179214
Incidentally Paul's two Spitfires works really well.
Thanks trev for the comment but i wish it had been just one plane or at least another one that was not a training spitfire cockpit perhaps being a little picky ,but i assume in war time they had the dual cockpit canopy ?or is this a add on for commercial use training
https://www.flickr.com/photos/58365044@N05/
From Wikipedia:
Supermarine developed a two-seat variant known as the T Mk VIII to be used for training, but none were ordered, and only one example was ever constructed (identified as N32/G-AIDN by Supermarine). In the absence of an official two-seater variant, a number of airframes were crudely converted in the field. These included a 4 Squadron SAAF Mk VB in North Africa, where a second seat was fitted instead of the upper fuel tank in front of the cockpit, although it was not a dual-control aircraft and is thought to have been used as the squadron "run-about". The only unofficial two-seat conversions that were fitted with dual-controls were a small number of Russian lend/lease Mk IX aircraft. These were referred to as Mk IX UTI and differed from the Supermarine proposals by using an inline "greenhouse" style double canopy rather than the raised "bubble" type of the T Mk VIII.
In the postwar era, the idea was revived by Supermarine and a number of two-seat Spitfires were built by converting old Mk IX airframes with a second "raised" cockpit featuring a bubble canopy. Ten of these TR9 variants were then sold to the Indian Air Force along with six to the Irish Air Corps, three to the Royal Netherlands Air Force and one for the Royal Egyptian Air Force. Currently several of the trainers are known to exist, including both the T Mk VIII, a T Mk IX based in the US, and the "Grace Spitfire" ML407, a veteran flown operationally by 485(NZ) Squadron in 1944.
https://en.wikipedia.org/wiki/Supermarine_Spitfire
That sounds correct. (My grandfather was in the ROC during WW2, and I spent far too long, as a child, re-reading and committing to memory his recognition journals. There was a very occasional photo of a two-seat Spit in them, but I don't believe that spotters were issued official silhouettes. That suggests they were very rare beasts.)