650-1300mm Telephoto Zoom Lens for Canon EOS Mount / EF

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The above ones were unprocessed images. For those who are still interested / will be interested, I am posting the processed images. Now, I don't have patience to upload individual images so posting them in zip format. Please select 'Slower download' option as a free user to download them.

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http://www.fileserve.c​om …processed_image​s_SET2.zip

pcasciola wrote in post #857815
Here is my first attempt at the moon with the Opteka. Definitely some funky stuff going on along the edges, especially along the bottom.

This was at 650mm, ISO 800, straight out of the camera, just sized for web:

Same shot with some Noise Ninja+USM:

Oddly enough, the moon was at nearly the same exact phase a year ago when I shot this with my 300/4L IS. This one is a 100% crop.

Nice try.
Ok, so the Opteka has nothing on the 300/4L IS aside from the $900 savings.

I successfully removed the cheapo t-mount that came with the lens and fitted the Celestron t-adapter, so this thing should be rock solid now. Back out in a little while for some 1300mm tests.

That is one nice try.

pcasciola wrote in post #10365330
I have this thing, and I used it exactly twice and it's been sitting in my basement ever since. See my previous posts on this thread, and that's how long it's been in my basement.

Granted this thing is craptacular, did you ever post any of the shots? I've been thinking of throwing away some bread on this thing.

From its looks...

This isn't actually a "Telephoto" lens. Although we tend to use the term "Telephoto" for all lenses with long focal lengths; the actual term for a lens of this type is "Long Focal Length" lens...

The difference between a LFL lens and Telephoto lens is that when focused at infinity, the distance from the oprtical center of the lens to the focal plane (film or digital sensor) is shorter than the focal length. With an LFL lens, when focused at infinity, the distance between the optical center of the lens and the focal plave is the focal length.

This accounts for the very long size of this lens.

BTW: I wouldn't touch this baby with a ten foot pole!

El_Fez wrote in post #15504782
Granted this thing is craptacular, did you ever post any of the shots? I've been thinking of throwing away some bread on this thing.

https://photography-on-the.net …hp?p=857388&pos​tcount=222

there's gotta be better ways to blow a couple hundred dollars...

I have to admit that I've been tempted by this thing for a year(ish) now. I've got my Canon 70-300mm for long shots, but it's suffered a couple of accidents and has been the worse for wear for a while. It still gets the job done, but it might be time to think bigger.

So I'm torn between the 600-1300mm (that doesn't look quite as good) and perhaps something like the Tamron 200-500mm (yeah it's more, but not unreasonably so) and perhaps a x2 teleconverter.

For the $249.00 price on the Opteka website, it's cheaper than most 2X teleconverters, but
I think the Sigma 50-500/50-500 OS/150-500 OS with a 2X teleconverter would still work better
and give you a very nice lens for other activities. If you could find a used one on e-bay for
$50.00 I would say jump on it. You wouldn't be out much, at least no different than going to
the theater for a Movie and Pizza afterwards. And I'm sure you would get an evening of
entertainment out of it.

--Evan

El_Fez wrote in post #15506644
I have to admit that I've been tempted by this thing for a year(ish) now. I've got my Canon 70-300mm for long shots, but it's suffered a couple of accidents and has been the worse for wear for a while. It still gets the job done, but it might be time to think bigger.

So I'm torn between the 600-1300mm (that doesn't look quite as good) and perhaps something like the Tamron 200-500mm (yeah it's more, but not unreasonably so) and perhaps a x2 teleconverter.

what are you planning to use it on that you think you can reliable MF at 1000mm, or 1300mm...

All you need is that and the 2X teleconverter that comes with the $149 500MM F8 and you're all set!

Jeff_56 wrote in post #17411235
I could go on but I have better things to do.

If this isn't going on id hate to see what is.

I have more money tied up in my guns than some people have tied up in their houses.

Can't you get houses in deserted estates in Detroit for crazy cheap like $5000? Are you sure you're not holed up in one of these abandoned dumps with all your big bad guns? Lucky you've got that lens so you can spot the bad guys comin'.

So many lols in one post. I just chose a couple of my favs to respond to.

Ahh I remember this thread!

Definitely not a great lens for everyday work but considering it's price it can give half decent results with a LOT of patience, especially for video use!

https://www.youtube.co​m/watch?v=n_wt0M8vm0c

When you need REACH, and don't have $10k to spend, then use this lens.

Here's some shots of a Snow Goose out on our lake, about 250 to 300 yards out. My Sigma 120 - 300mm with Sigma 2x teleconverter just didn't cut it, so I pulled out this bad boy. Set at 1200mm with the Sigma 2x gave me 2,400mm of reach (3,120 mm if you add in the 1.3x crop factor of my Canon 1DMkIIn). Photos NOT cropped (dirty lens - GUILTY!) but it gave me proof that I saw this bird today (lifer for me) and rather uncommon in this area. Could I have done with a spotting scope? I don't think so.

IMAGE LINK: http://s219.photobucke​t.com …4523_zpsyo7l2it​n.jpg.html

IMAGE LINK: http://s219.photobucke​t.com …4479_zps3qj3frd​u.jpg.html

IMAGE LINK: http://s219.photobucke​t.com …4473_zpsbwiualz​z.jpg.html

IMAGE LINK: http://s219.photobucke​t.com …4451_zpsoy3jagy​6.jpg.html

Look at those duck shots, SHARP SHARP SHARP, like bleeding!