Canon EF 800mm f/5.6L IS USM

Why would I be shooting through a window? That wouldn't give good results at all!

Jan Jasinski wrote in post #18066965
This lens is only useful a handful of times, here is one of them!

IMAGE LINK: http://www.photojan.ca​/YTR/i-TX24bPh/A

That's an excellent shot.

Have you used the Canon 400 DO II ? With the 2XIII attached it makes a pretty good alternative to the 800mm lens.
Half the weight and almost half the price.

Jan Jasinski wrote in post #18067623
Why would I be shooting through a window? That wouldn't give good results at all!

Why I asked. Hoping for some description of how you got the shot. I've shot from several types of aircraft and once or twice got a very nice image through a window. Mostly I shot from open doors in helicopters or light single wing airplanes. The only time I ever had a view of a large cargo aircraft from a small observation craft was closer and, to tell the truth, a little scary and I was just a passenger.

So what were you flying in?

Perfectly Frank wrote in post #18067690
That's an excellent shot.

Have you used the Canon 400 DO II ? With the 2XIII attached it makes a pretty good alternative to the 800mm lens.
Half the weight and almost half the price.

Thank you! I also rented the 400 f/2.8 II and actually found the images sharper and more accurate with the 400 + 2x vs the bare 800mm. It was especially a better combo for prop aircraft while using IS mode III.

advaitin wrote in post #18067769
Why I asked. Hoping for some description of how you got the shot. I've shot from several types of aircraft and once or twice got a very nice image through a window. Mostly I shot from open doors in helicopters or light single wing airplanes. The only time I ever had a view of a large cargo aircraft from a small observation craft was closer and, to tell the truth, a little scary and I was just a passenger.

So what were you flying in?

Ah, yes for some reason everyone seems to think it was an aerial photo although it was taken from the ground. The aircraft was performing a tight turn fairly low over the ground which may give the impression that it's air2air. I've only ever taken a couple of photos through the window of a Cessna.

TheGaffer wrote in post #7191723
I would like to nice to open this thread with some sample pictures but alas I don't (yet) own this monster.

I started this thread a decade ago and forgot about it. I did eventually buy the glass.

Here is a video of the moon. 800mm + 1.4x + 2.0x

https://youtu.be/06SXY​rI783U

The camera is on a static tripod. The movement is simply how fast it appears to move across the sky.

...first set with this lens, picked it up yesterday. high noon, lighting is meh

The Canon 800mm f/5.6 is an amazing lens, especially for distant wildlife. Almost magical in its abilities, at times. If the photographer's technique regarding stabilization is good, it even performs very well with flying birds. This is a short-eared owl from Ohio earlier this year, in fading day's end light.