Posted:
Hey, i've recently filmed a firespin, and when I watched the video, there were verticle blue lines where the flames where for the entire spin. This is incredibly annoying, and so I was wondering whether anyone here knows how to stop this?

Thanks.

DurbsBRONZE Member
Classically British
5,688 posts
Location: Epsom, Surrey, England


Posted:
First step would be to clean the lens... Use a proper anti-static, non-smear cleaner with a lint-free cloth.

It could've been moisture on the lens as well, especially with how cold it is here at night at the moment...

Burner of Toast
Spinner of poi
Slacker of enormous magnitude


marcoenthusiast
328 posts
Location: uk


Posted:
I have seen this on numerous occaisions with the cheaper end of consumer grade cameras (mini-dv). Moisture and material on the lense notwithstanding, I have nearly always understood the problem to be one of design.





mark

DurbsBRONZE Member
Classically British
5,688 posts
Location: Epsom, Surrey, England


Posted:
Yeah, could just be your camera's not quite up to the job, though if this were the case it would always have issues with fire.

My Mini-DV records fire fine, and it's no where near a top-of-the-range one, even by camcorder standards.

Have you tried frowning at it and hitting it with a stick?
wink

Burner of Toast
Spinner of poi
Slacker of enormous magnitude


Posted:
Errm, i'll be sure to try that Durbs. The camera is brand new so I doubt it's moisture - but i'll give it a shot. Any other ideas? smile

PinkNigelPinker than thou
336 posts
Location: A little pink world all my own..


Posted:
I'm with the "it's the camera" brigade..

Digital cameras capture images on a grid of whatsits (sorry, brain's gone a blank on what they're really called). On older cameras and presumably still on not-so-good ones, the way they're wired up means a bright light spot fritzes a whole column of whatsits resulting in the blue lines you're getting.

A wise man once said: "You have two ears and one mouth, therefore you should shut the censored up and listen" (though, to be fair, he might not've put it _quite_ like that..)


Posted:
Right. So does this mean i'm stuck with my non-refundable camera which doesn't film? frown



Or is there something I can do?
EDITED_BY: Rellizate (1196193942)

akgraphicsSILVER Member
member
133 posts
Location: Churchill College, Cambridge, United Kingdom


Posted:
Try changing the brightness settings down on the camera before filming? Then adjusting the brightness afterwards on the computer if its too dark.

I kinda like these lens-flares - I do like the button that makes them in Photoshop!

(The grid of whatsits is called the Charged Couple Device (CCD) not sure what the whatsits are though! Something photoelectric effect (urgh GCSE quantum physics .... ) )

Posted:
Hmm ok i'll look at the brightness settings. Yeah, it can look fairly cool, but it gets quite annoying when it's always there...

marcoenthusiast
328 posts
Location: uk


Posted:
Several thoughts here, unfourtunately there is not really anything wrong with the camera, however, if it is new then you might want to see if it is returnable, saying it is not suitable, I suppose it depends on the supplier, and or their return policy, and how long you have had it.

I suspect you will find this is one of lighting contrasts, so if you can film at dusk rather than against black, other options depend upon what level of manual control the cam lets you have, you will need to reduce the exposure, try a neutral density filter, and possibly ant glare filter and lense hood might help.

good luck

mark

Posted:
Right, well this is a digital camera, not a video camera so you can't fit lenses onto it. It's also non-refundable which is annoying... Anyone reccomend any DECENT video cameras which work?

marcoenthusiast
328 posts
Location: uk


Posted:
Cannon Xl1 or Xl1s 3ccd, these are good system cameras, I use them for fire, although they are somewhat expensive and probably much more than you need, you might be able to obtain a decent example from ebay or similar,



mark

Posted:
Errm I ment something within a more reasonable "hobbiest" price range. tongue

squidBRONZE Member
sanguine
382 posts
Location: sur, USA


Posted:
What is the actual camera you have? I am getting one for this holiday and have basically decided on the Panasonic Palmcorder SDR-H18 Hard Disk/SD Card Camcorder. Its about $460 USD.

"to a man whose only tool is a hammer, the whole world looks like a nail." Abraham Maslow


Posted:
Well the camera I have that has this problem is a Fijifilm Finepix F50fd.

squidBRONZE Member
sanguine
382 posts
Location: sur, USA


Posted:
I looked at a couple of reviews for the Fujifilm Finepix and it is pretty well thought of. Apparently it does not offer a full manual exposure operations mode, so it has difficulty in high contrast situations. That sounds exactly like what your problem might be.

I would follow marco's advice and try shooting fire spins at dusk or with more ambient lighting so that the contrast of the poi vs dark background isn't so great. Maybe that would help.

If you are not impatient, wait until after the holidays and I'll report to you on how the Panasonic does with firefilming, once I get an opportunity to test it.


Does anyone else have a low-budget option that they like for this kind of activity?

"to a man whose only tool is a hammer, the whole world looks like a nail." Abraham Maslow


hamamelisBRONZE Member
nut.
756 posts
Location: Bouncing off the walls., England (UK)


Posted:
Hm.. how long have you had it for?



Fuji are generally pretty good at fixing if you've had it less than a year- my Mum even got hers fixed outside the guarantee period for free.. I use a finepix f10, which is one of the older models in the same series- and I've had no issues at all with glare, and I've got a lot of fire spinning videos on there, sometimes I've had the blue lines show up on the display screen during filming, (which it does warn may happen in the instruction book) but never on the actual vid clip.



By the way- the comment about the 'full manual mode' is irrelevant is you're fliming- this mode (on the older model I own)- is only for photos..



That is definitely not s'posed to happen. Complain. wink
EDITED_BY: hamamelis (1196975751)

THE MEEK WILL INHERIT THE EARTH!


If that's okay with you?


Posted:
I've had it about 3 days. For photos it only shows up on the viewfinder, but not on the actual picture, but it does show up for videos. It happens on my mum's older Fujifilm as well, so i don't think it is an error.
EDITED_BY: Rellizate (1196979105)

squidBRONZE Member
sanguine
382 posts
Location: sur, USA


Posted:
 Written by: hamamelis

By the way- the comment about the 'full manual mode' is irrelevant is you're fliming- this mode (on the older model I own)- is only for photos..




Yeah, I kind of took a stab in the dark, as I couldn't find any mention of that specifically relating to video vs photo.

Thank you for correcting me there. smile

"to a man whose only tool is a hammer, the whole world looks like a nail." Abraham Maslow


Posted:
https://cgi.ebay.co.uk/ws/eBayISAPI.dll?V...I:IT&ih=019

What do you say about this? Would this one work properly do you think? There's only 2 hours left!

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