Sciencemadness Discussion Board

Another Zoom Lens

Morgan - 2-7-2016 at 10:53

Kind of impressive
https://www.youtube.com/watch?v=JuC5JejmMmI
https://www.youtube.com/watch?v=kQ5Mtu1B1Cc

careysub - 2-7-2016 at 11:23

That is nothing short of amazing!

At US$600 it is not mega-expensive either. I just picked up a fancy telescope eyepiece for that price.

phlogiston - 2-7-2016 at 14:22

Wow, for someone not into photography, this is amazing. I had no idea this was even possible with such a small lens.
Will it not be difficult to stabilise the camera sufficiently, especially since the amount of light entering the lens at maximum zoom will be small (-> long exposure duration)?

aga - 2-7-2016 at 14:45

Staggering !

All optical ?

unionised - 3-7-2016 at 01:13

Presumably you just about have to set the camera in a two ton block of concrete to hold it steady enough to take pictures at that distance.

Still a cool achievement, and it's not that concrete is expensive.

Marvin - 3-7-2016 at 08:51

This could do with "Nikon P900" in the title. 83x zoom is impressive, but that is relative to the widest setting which is 24mm. I'm not sure what to make of it, much of what I see isn't crystal clear but then shaky camera work and heat haze might be a lot of the problem.

careysub - 3-7-2016 at 15:20

Quote: Originally posted by Marvin  
This could do with "Nikon P900" in the title. 83x zoom is impressive, but that is relative to the widest setting which is 24mm. I'm not sure what to make of it, much of what I see isn't crystal clear but then shaky camera work and heat haze might be a lot of the problem.


But 24mm is a pretty wide angle lens, so this is a "never change or buy another lens camera", going up to a remarkable 2000mm. This is the focal length of an 8" Schmidt-Cassegrain telescope:
https://www.astronomics.com/celestron-8-inch-sct-optical-tub...
which is itself a compact folded optics design.

It is the range of adjustment that is impressive not breaking some record for super-telescopic lens capability.

It is pretty freaky even just watching how far out the lens extends.

From my experience with telescopes I can be assured that "shaky camera work" is not the issue. That sucker had to be locked down solid on a mount to get that zoom sequence. It is all the unsteadiness of the air.

vmelkon - 27-2-2017 at 12:33

Pretty impressive. I have been looking for this camera around Montreal but can't find it.
I can't find other models as well like Nikon D3200, D3400 for some reason. Either these are old and Nikon is no longer making them or they are in short supply.

Sulaiman - 27-2-2017 at 12:51

http://en.nikon.ca/nikon-products/product/compact-digital-ca...