$200 - 2600MM TELEPHOTO LENS TEST

Today, Hunter and I venture out to try out Opteka's telephoto lens sporting an insane 650-2600mm focal length.
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Music:

[ChaseGuerdet]

Hey guys! Be sure to check out our follow-up video using this lens to take better photos/videos from your suggestions!

[cadmus]

On the A7iii, which is full frame, it maxes out at 2600mm, but on the A6100, which is APS-C, it's actually at 3900mm (1.5x crop)! With this sort of zoom, doing it on a still, cold day will give you MUCH better results than a hot windy day, as you are looking through so much space. Nice job guys!

[PetCactusA_HarmlessLittlePrick]

It's soft for three, or more, reasons:
1. Fixed aperture so you can't stop down
2. Shooting through a great deal of atmosphere _and_
3. Shooting over water = more moisture/humidity/atmosphere, and more turbulence

[tijsp.]

Very interesting! It actually performed better than I expected. I have recently been trying to get into astrophotography, and one of the first things you learn about is sampling. Basically, there is a fundamental, theoretical limit to the the degree of magnification one can achieve, and this is tied directly to the size of the primary lens. With the combination of lens and cameras you were using, you guys were way oversampling! For the A7iii you were 3.1 times past the theoretical maximum resolution, and the A6100 was 4.6 times past the maximum! So even with perfect optics, there would still have been significant fogging. To prevent this fogging, the minimum size of the objective would have to be 240mm, or nearly 10 inches!
If you want more information, I would suggest looking at the wiki pages for Dawes limit and the page "Angular resolution"

[abeidaba]

I started watching without knowing how many subs you got, and with the video's quality and efforts put into it I genuinely thought you got way more subs than you actually got, you got my respect bro

[yani]

oh my god you have only 150 subscribers
aw man that was such a nice video. This channel had a lot of potential! Looking forward to seeing future videos 👀

[Waylon-Pierce]

I can tell some effort went into this video, it has good production quality. Hope your channel grows 👍

[MagnoliaX]

Try it on the Moon and Jupiter. Could be a cheap option for some planetary astrophotography. The amount of flex that thing has is a big problem but if you could mount it in a lens support it would probably work fairly well. As long as your not worried about chromatic aberration or edge focus snobbery.

[mylesbraverman]

Hey great work! Love the effort for such a small channel. You guys nailed it. Can't wait to see your progression on YouTube. You have earned my subscription

[HarnaiDigital]

That was an amazing vlog. I didn't realized you only have 800 Subs. I would recommend you make more fun style videos because your duo is amazing to watch. Also every time he laughed. I loved it. Great job.

[Trimere]

I bought this lens back in 2017 and used it to take pics of the Solar Eclipse in August of that year. Did phenomenal. However, it isn't really suited for much else because of the manual focusing. It's really only good on objects with fixed focal lengths that don't move around too much. Even the moon is problematic due to Earth's rotation moving the subject out of frame consistently at such a high zoom factor.

That being said, it's a good introductory lens for understanding super telephoto lenses without the hefty price tag. I upgraded after this lens to a 200 - 800mm with a 2x entender and even though 1600mm is half the distance, it's a lens I 200% love more due to autofocusing and it being a fast lens.

Nice test video.

[dat_chip]

Here's what I would do with it: Forget about the teleconverter. Use the fullframe camera. Under-expose a little bit. Use a rock or a building instead of a tripod. Increase "contrast" in the video or picture settings to get rid of haze. And then it might actually yield usable results. :)

[myenkos]

This is far and away the most entertaining and authentic feeling lens review/vlog I’ve watched in recent memory. I’m certainly a fan of character over quality down to every tiny production detail. All of the information is there, the character of the people in the video is prominent and authentic, and ultimately it feels like chatting with friends. 10/10

[liamgoss]

I was looking at almost this exact lens for some astrophotography, this video (of which helped me decide against it, lmao) was randomly recommended to me - you earned a like & sub, great video!

[mikehare]

One other quick thing. When you picked the extended lens up it had flex to it. Without a strong arm or rail to mount the lens at two points and maybe a third point for a camera you cannot get the arch out of the lense. Cannot get a good focus unless looking thru the center of the lens. Good luck guys I think you can get this thing tack sharp.

[nurranderricrypto]

I've had one of these bad boys for 6 or 7 years now and I took it to Africa on safari ( Kenya, Tanzania ) really for a laugh, I set it up in camp on a tripod ( must have a tripod ) and focused in on a spot on small mountain over a mile+ away in Sumburu national park that had Leopards

[rokhmmann]

I like it guys :) I hope you don't stop public something like this. Because the experiment was crazy and pretty interesting. The lens is not bad I think. Maybe this converter was superfluous. On 650-1300 it can be good lens for animals photography, or maybe this converter can help you to get something interesting in astrophotography. But however don't stop doing you content! It's kind, funny and interesting. Peace!

[aodoemela]

Astrophotography??? Maybe.
The shaking maybe?? doesn't matter when the starts are so far away...maybe

[adventureswithaleks]

That’s pretty cool that you can get this zoom for just 200… though not sure what you could actually do with it… hope you can think of a good use!
Subbed, curious to see more, always on the lookout for some video ideas 😁

[emmanuelkoech]

Hey there, some great video here. Would you guys please zoom at the moon with the lens? Maybe some comparisom between 650mm and 2600mm. Thanks