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November 23, 2017, 09:38:08 pm
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Author Topic: Remote Controlled Multicopters  (Read 17953 times)
dbacksfan 2.0
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« Reply #30 on: October 21, 2014, 11:04:49 am »


Id like to get away from the default GoPro wide angle optics if/when I take the plunge, so Im curious, is anyone working with a high-res camera as their navigation view?  Gimbal mount would be a must.

http://www.bhphotovideo.com/bnh/controller/home?O=&sku=1044729&gclid=Cj0KEQjwiJiiBRDh3Z-ctPfS5MgBEiQAAlkbQqsVxi9alyXd7q8-PT43sNVbKidFqufmsVhOt-4v4fsaAue18P8HAQ&Q=&is=REG&A=details

I think it's just too much weight to get selectable zoom capabilities.
« Last Edit: October 21, 2014, 11:09:54 am by dbacksfan 2.0 » Logged
patric
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« Reply #31 on: October 21, 2014, 11:48:48 am »


I might end up with a "pseudo PTZ" where the focal length is closer to what might pass for "normal" on a DSLR, but the resolution is high enough that you could perform a virtual zoom and still render detail.  Ive seen this with some success on IP security cameras, but if I had my druthers, Id druther use real optics (but glass is heavy).
« Last Edit: October 21, 2014, 11:50:42 am by patric » Logged

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« Reply #32 on: October 21, 2014, 12:28:23 pm »

I might end up with a "pseudo PTZ" where the focal length is closer to what might pass for "normal" on a DSLR, but the resolution is high enough that you could perform a virtual zoom and still render detail.  Ive seen this with some success on IP security cameras, but if I had my druthers, Id druther use real optics (but glass is heavy).

What I'm currently working on, others have used to put big glass on it.  It's large diameter, but would require a sizable power source.  The RTF (ready-to-fly) models aren't really cost-effective.

What i'm building right now is about double the diameter and three times the lift capabilities of the Phantoms.  However, I'm still going with a GoPro on mine simply because I don't want to have $1000 worth of fragile optics PLUS the $1500 in hardware pushing it at the mercy of a thermal or VRS (also known as 'settling with power').  The Tarot FY680pro or even their 960 has combo kits, and some may offer to build.  But you'd be looking at quite a price tag and that would be without the glass.
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dbacksfan 2.0
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« Reply #33 on: October 21, 2014, 12:51:45 pm »

The biggest selling points for the GoPro are cost, ease of use, light weight and most of all durability. I understand patrics thought about not having such a wide angle lens, but then again that is why it is so it can capture as much as it can, and that's why I like using mine.

And yes adding zoom would require larger optics and more elements, as well as the mechanicals behind controlling an optical zoom, more weight, and yes you can do virtual zoom as well, but you also would require a better stabilization platform as well, since regardless of the zoom method, it over exaggerates any movement or vibration induced into the camera.
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Conan71
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« Reply #34 on: October 21, 2014, 12:59:29 pm »

Hasn’t anyone been working on a GoPro case with an optical zoom?  Just seems like a no-brainer there would be a market for it.
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dbacksfan 2.0
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« Reply #35 on: October 21, 2014, 01:12:06 pm »

Hasn’t anyone been working on a GoPro case with an optical zoom?  Just seems like a no-brainer there would be a market for it.

That's not a bad idea. You could make a replacement lens for the front of the body, since the make a stock one, that would act like a "doubler" like the ones that were made for twin lens reflex cameras.
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« Reply #36 on: October 21, 2014, 01:39:09 pm »

The biggest selling points for the GoPro are cost, ease of use, light weight and most of all durability. I understand patrics thought about not having such a wide angle lens, but then again that is why it is so it can capture as much as it can, and that's why I like using mine.

And yes adding zoom would require larger optics and more elements, as well as the mechanicals behind controlling an optical zoom, more weight, and yes you can do virtual zoom as well, but you also would require a better stabilization platform as well, since regardless of the zoom method, it over exaggerates any movement or vibration induced into the camera.

There have been so many GoPros in Phantom crash videos that have survived where I absolutely am sold on the GoPro durability.  Some survive from falls from over 200 feet will little more than surface scratches.

[youtube]eHqae-TIspM[/youtube]
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« Reply #37 on: October 21, 2014, 01:43:42 pm »

As I was reading this thread, I mentioned to MC we need a UAV to harass crazy pants next door.  Nothing close mind you, but simply hovering a couple hundred feet overhead.  Maybe if she thinks the CIA and MI6 finally found her, she will get the hell out of our neighborhood.

I could bring mine over one day.  That thing is hella loud and could be mistaken for a swarm of bees even at 200 AGL.   Grin
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« Reply #38 on: October 21, 2014, 02:12:13 pm »

I could bring mine over one day.  That thing is hella loud and could be mistaken for a swarm of bees even at 200 AGL.   Grin

THAT would be awesome!  Reminds me, my neighbor across the street (not crazy pants) has worked where you do for about 30 years.
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« Reply #39 on: October 21, 2014, 02:45:51 pm »

THAT would be awesome!  Reminds me, my neighbor across the street (not crazy pants) has worked where you do for about 30 years.

There's only one or two that do.  I likely know him.  I'll PM you.
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Vashta Nerada
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« Reply #40 on: October 24, 2014, 06:57:49 pm »

What I'm currently working on, others have used to put big glass on it.  It's large diameter, but would require a sizable power source.  The RTF (ready-to-fly) models aren't really cost-effective.

What i'm building right now is about double the diameter and three times the lift capabilities of the Phantoms.  However, I'm still going with a GoPro on mine simply because I don't want to have $1000 worth of fragile optics PLUS the $1500 in hardware pushing it at the mercy of a thermal or VRS (also known as 'settling with power').  The Tarot FY680pro or even their 960 has combo kits, and some may offer to build.  But you'd be looking at quite a price tag and that would be without the glass.



This would be fun:




https://ci6.googleusercontent.com/proxy/RXq25mG5ZbS8j18bD8zaPqibEe8NycYaCjW1Bc-0zovkiYvEz6lfRf-V2jXmdBtxHfKSQY6cYLDgzPcteEwqkQgE1XNcrNK1BL1c=s0-d-e1-ft#https://pbs.twimg.com/media/BwzeIdbCAAAIa68.jpg:large
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Vashta Nerada
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« Reply #41 on: October 28, 2014, 10:54:26 pm »

[youtube]http://www.youtube.com/watch?v=u1ZB_rGFyeU[/youtube]
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« Reply #42 on: November 10, 2014, 01:26:33 am »

A photo of my current build (nearly complete, have it all wired but having some issues getting it off the ground properly).

DSC_0600

Here's the link to the entire album.

https://flic.kr/s/aHsk5Yutyc

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DolfanBob
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« Reply #43 on: November 10, 2014, 03:49:29 pm »

Hoss. How long is the flight time?
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« Reply #44 on: November 10, 2014, 04:19:08 pm »

Hoss. How long is the flight time?

Hmm...looks like a question that Conan asked earlier that was similar in nature is gone.  I'm going to attribute that to the database crash error I got earlier.

The calculations with the current battery I have (4S, which is a 14.8v LiPo and 8000mah) and the current weight is about 20 minutes of flight time.  If I put optics on it weight is added, so obviously that flight time goes down.  I haven't tested flight time yet simply because we are still working on getting it right because it isn't flying right now.
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Libertarianism is a system of beliefs for people who think adolescence is the epitome of human achievement.

Global warming isn't real because it was cold today.  Also great news: world famine is over because I just ate - Stephen Colbert.

Somebody find Guido an ambulance to chase...
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