By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

808 #16 key cam first attempt - not good !!!

All Topics | Latest Posts

Search for:  in Thread Title in  
PB01/12/2012 12:49:53
155 forum posts
17 photos

OK, so the 808 #16 key camera finally arrived, checked it at home, impressed with the video quality, mounted it on my Twinstar II and flew it round the flying field. Result.......terrible !!!

As you can see It was a dull overcast day, but even so every time the camera had some of the sky in view as well as the ground, the camera exposure shut right down to expose the sky beautifully and hopelessly underexpose the ground.

I see lots of videos on Youtube of this camera being flown with sky and ground in view which have both ground and sky exposed pretty well, and I donl't know how to achieve this with this camera. Any advice/tips/flying techniques would be greatly appreciated.

 

Edited By PB on 01/12/2012 13:02:04

Edited By PB on 01/12/2012 13:08:07

Edited By Biggles' Elder Brother - Moderator on 01/12/2012 13:19:27

David Gilder01/12/2012 13:08:57
avatar
1859 forum posts
673 photos

Obviously smooth flying helps!!

if you rapidly move from sky, to ground views, the camera cant keep up with the change quickly enough, so you end up with either over exposed or under exposed picture. This improves after a second or so but could be part of the issue!!

It doesnt really seem to matter how grey the sky is as it is still going to be considerably brighter to the camera than looking down on the earth!!

Try not to fly with the camera pointing in the direction of the sun as this would increase the problem!!

Good luck and keep trying!

Dave

wink

John Payne01/12/2012 13:21:33
avatar
163 forum posts
63 photos

Hi PB. I am actually impressed by the quality of the video itself. As David says, they are fairly simple cameras and do not react like a large camera when the image changes from light to dark. On my Twinstar I have the camera set so that it points mainly towards the ground when it is in level flight and it helps a lot with this reaction time. It's just a matter of getting used to what different conditions do to the camera and how to mount the camera to suit. Cheers, John.

Colin Bernard01/12/2012 15:47:11
avatar
502 forum posts
93 photos

Hi PB

As John says, the secret is to have the camera pointing quite sharply towards the ground.

My first couple of attempts had similar results to yourself until I did this, since then for the price I am really impressed with it.

PB01/12/2012 17:54:29
155 forum posts
17 photos

OK, first, thanks for putting my video right BEB. I read the sticky and did what it said, but I guess I got something wrong.

Thanks for all the tips too. I'd be very interested how you've mounted your camera on your Twinstar John. All I've done is cut a slight recess in the removable cabin and threaded elastic down through the cabin to hold the camera in place. It works well as a camera mount, but obviously doesn't point it down enough.

I'll press on though and hopefully get a decent video in time.

Thanks again........

Paul Marsh01/12/2012 18:49:27
avatar
4031 forum posts
1217 photos

This is my attempt, on the same type of camera. Actually, your video is ok, considering how little light there is.

John Payne02/12/2012 10:22:40
avatar
163 forum posts
63 photos

Hi PB, I will take a couple of photos later today and post them up. Basically I have just used Velcro to hold the camera onto the front slope of the fuselage and tucked the key ring chain under the canopy for safety. It will be clear in the photos. Cheers, John.

Garbo02/12/2012 10:37:33
avatar
497 forum posts
34 photos

Some times its nice to get a bit of the plane in shot

PB02/12/2012 10:56:51
155 forum posts
17 photos

OK thanks John, that makes sense and I played with velcro fastening but it didn't seem to stick to the foam too well. Did you CA it ion? I'll definitley try that though.

Yes Garbo, when I was experimenting in my back garden with camera position I had it on the wing pointing out, on the wing joint pointing back and on the cabin pointing down to show the nose in shot. I wasn't too keen on any of those positions to be honest, but I do like your video - nice - pitty about the music, but that's just my age I guess wink 2

Thanks for the help and advice.

Edited By PB on 02/12/2012 10:59:22

John Payne02/12/2012 14:43:13
avatar
163 forum posts
63 photos

Hi PB. The first photo shows the fuselage and camera and the velcro. The velcro is held on with hot glue on the fuse and camera. The plywood let into the foam is for a Flycam Eco which i sometimes screw onto the front. The green area is to stop any flare into the lens from the reflection off the white foam.

Fuselage and camera

The second shows the camera mounted on the front with the chain and split ring sited under the canopy as a back up.

Camera on fuselage

The third photo show the side view and the angle that the camera looks down at. You can vary it a little to get the shot you want. I go for the horizon in the top 20% portion of the image and the front of the fuselage just showing into the image. As Garbo says, seeing part of the model in the image makes for a better shot.

Side view

Cheers, John.

Edited By John Payne on 02/12/2012 14:44:27

Simon Chaddock02/12/2012 15:28:53
avatar
5716 forum posts
3034 photos

You will find that Key Fob cams don't particularly like grey overcast days! Due to the low light levels it has to turn up the sensitivity and this effects its ability to distinguish between the sky and ground.

On a bright a bright day you will find it works much better but you do have to avoid pointing anywhere near the sun!

I have a suspicion the HD #16 are a bit worse in this respect than the ordinary ones.

PB02/12/2012 16:46:35
155 forum posts
17 photos

John what a great set of pics, thanks...............

I gave mine a quick frontal lobotomy:

pic02479.jpg


pic02480.jpg

Your mounting is a much better idea so I think I'll put its brain back in with some spare foam and copy what you've done.

Simon yes I think you're right. Reviews do say that they tinkered with the exposure setting on the #16 but supposedly for the better - perhaps not for this use though !!

Thanks again for help John, much appreciated.

Paul Marsh02/12/2012 18:48:18
avatar
4031 forum posts
1217 photos

This is on a ST Models 337, looking aft and chucking it around

John Payne02/12/2012 23:18:39
avatar
163 forum posts
63 photos

No problem PB, glad to help. Hope the lobotomy goes well............

Cheers, John.

John Hickson03/12/2012 14:57:23
avatar
222 forum posts
1 photos

Never mind the camera, I want that field!

Carl Muff03/12/2012 14:59:43
avatar
350 forum posts
212 photos

i cant see the video ???

PB03/12/2012 15:29:38
155 forum posts
17 photos

Yes John H, we are spoiled a bit I guess. The downside is that it's not very photogenic unless you're brave enough to let your model go over towards the sea. Just about stays in visual range, so not for the faint hearted. Here's the Wiki on the airfield:

John Hickson03/12/2012 16:22:29
avatar
222 forum posts
1 photos

'Im tempted to move to Cornwall !

PB03/12/2012 18:19:48
155 forum posts
17 photos

If ever you're down this way drop me a PM I'm sure the club would be delighted to welcome you to Predannack as a guest.

John Hickson03/12/2012 20:48:32
avatar
222 forum posts
1 photos

Thanks for the offer PB. I get down there often in the summer months camping, but the car is simply too full of home comforts to fit anything RC related in

All Topics | Latest Posts

Please login to post a reply.

Latest Forum Posts
Support Our Partners
Sussex Model Centre
CML
electricwingman 2017
Slec
Advertise With Us
Sarik
Latest "For Sale" Ads
Has home isolation prompted you to start trad' building?
Q: The effects of Coronavirus

 Yes - for the first time
 Yes - but Ive bashed balsa before
 No - Ive existing projects on the bench
 No - Im strictly an ARTF person

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E!