I've been fortunate to be able to photograph Northern Pygmy Owls in a couple of Colorado locations over the past few months.
It took me 10 sessions with the Pygmy Owls to achieve shots with clean backgrounds and perches, but I finally had this chance.
The first picture was the result of the experiment of stacking two 2x Canon Extenders on my Canon EF 600mm f/4L IS II Lens for an effective focal length of 2400mm! It actually works quite well!
Even at 1,200mm, those are excellent captures but for sure more impressive to find out that the effective focal length is 2,400mm! If I remember correctly, Canon EF TCs do not allow direct stacking; you have to use an extension tube, but you loose the infinity or you use a generic TC, like Kenko TC. That was back then several years ago. Did they change it to make them directly stackable now?
Wow those are great shots of a beautiful owl at 1200mm but 2400 is unbelievable. As a owner of a RF 600 F4 + 2 X RF TC I would be thrilled with the results with just one TC. Great skill to pull these shots off.
AGeoJO wrote:
Even at 1,200mm, those are excellent captures but for sure more impressive to find out that the effective focal length is 2,400mm! If I remember correctly, Canon EF TCs do not allow direct stacking; you have to use an extension tube, but you loose the infinity or you use a generic TC, like Kenko TC. That was back then several years ago. Did they change it to make them directly stackable now?
Joshua
If you use a 2x II and a 2x III, it works with no extension tubes.
The new RF 1200mm is just a RF 600mm with a built in mount adapter and built in TC!
That's right, why spend $20k for that. Canon is hating you now ...
It's insane to think about auto-focusing at F16 when in the old days F8 was a big deal.
What's next? Stack 3 TCs?
