Messages

How big is the graphic card's influence in video editing (premiere)? Does it really make sense to go with a dual gpu setup instead of one?

Hey guys!

Recently I have noticed a problem with my tamron 17-50Vc lens. On the wide end somewhere from 18 to 28mm it sometimes looks like it has something like fog inside. It becomes more visible when used in bright environments or against a window. Does anyone know if I can do anything about it?

Sl1 is bigger then I would want, rx100 though has the perfect size. Maybe there are some other options?

Hey guys!
Can anyone recommend a good compact pocketable camera for shooting video?  It also should be able to take raw photos.

I looked into that wiki page, but still couldn't find the explanation (maybe I just missed it, I don't know). If we take a 40mbit/s video and cut the bitrate to 20, exactly which information gets cut in half? I want to that.

Hey guys!
Can someone explain please what does bitrate really do in video? And what is the technical difference between, for example, a 40 mbit/s video and a 20 mbit/s video?

I recently also did the same upgrade from 550d to 600d. For me the main things were articulated screen and digital zoom. But it came with a price - 600d has worse audio hardware and really you can't use it without a preamp in normal environment where you have to apply some analog gain in camera. The hiss is really loud if you set the analog gain more than +15. Good that I had a Zoom h1, which I could use as a preamp, that way the sound is ok. I have the Rode video mic, which has no +20db option like the VideoMic PRO, I guess with the pro video mic the sound would be better,

I just love the articulated screen and digital zoom, don't want to go back to 550d.
Anyone else with an opinion here? If that is true, why is it so? Can it be improved?

Hey!

A while ago I sold my 2,5 year old Canon 550d and got 600d instead. I cannot stop the feeling that 600d has more noise in the audio than 550d had.
Since I don't have my 550d anymore, I cannot test this, so maybe some of you guys know on which camera audio is better?
550d didn't have the analog mic boost feature, which the 600d has, so 600d could even be better than 550d, but I am still thinking otherwise.
What is your opinion?

I requested it a while ago. Tried to use recovery once and it worked just fine. I was asked to delete the video I shot, while someone was looking over my shoulder, I did it and later used a recovery software to get everything back. Just make sure to put that memory card away after the incident and don't use it until you have recovered everything you wanted.

Nice!! Yeah, I hadn't noticed it

It would be really good to see on the main LV screen what sound recording option is chosen (int, auto, ext, etc...). When I had my old 550d the audio port got broken a few times. It didn't detect whether I had put in an external mic sometimes, so if it was set to auto, it didn't switch to external when I connected a mic. Then I always set it to ext only, but on some of my sd cards it still was auto, so sometimes when I forgot to check it, I accidentaly recorded with int mic instead of the ext.
Even though now I have a new camera, I am still always checking it, and it is really annoying.
So yeah, it would be cool to see which sound input is being used without going in the menu.

Hello!
I was wondering if anyone has come across some video editing app on android that is able to export xml, edl or aaf files?

What about HDR video by changing shutter speed not the iso?
This would be another option for HDR video to choose from. That way you could have less noise in the dark parts.
The different motion blur would create some problems I guess, but it would be nice to have a choice.

Would it be possible to implement such feature? For example auto expo (iso or iso+aperture) for like 3 seconds with one push of a button.

Another question - is there the auto iso mode on 550d anymore? I cant find it (running a few months old nightly).

Yea, I thought about recovering, too. Does it work in 100% cases if you don't touch the card after deleting?

Could it be possible to fake a video deletion on 550d?
For example, if you are shooting something (government people, army, etc.) and they come to you and ask to delete that video or even take your camera to do it themselves, or in the worst case - they want to delete all in your card. This function then would be very useful.

I have been thinking of this also for a while now.
To my understanding - in controlled lighting you never want to use flat picture styles. Actually it is the other way - you could gain resolution by adding contrast to picture styles and then adjust the lighting to your desired contrast level.

Hey!

This year for weddings I'm going to rent a 5d2, I myself have a 550d and 5 16gb SD cards. I don't want to buy any CF cards for use with the rented 5d2, so here's the question - has anyone tried how well these adapters from CF to SD work for video?

Interesting idea. The aperture indeed doesn't jump around if I do so and the exposure change is smoother than with the lens properly attached. The exposure change still remains though.

Since it's not a constant aperture zoom, setting it to f5,6 already in the beginning results in flickering while zooming. If you don't care what your zooming looks like and you are going to cut it out anyway, it's fine. But zooming motion on a fixed aperture lens will never look like zooming on a non-fixed aperture lens no matter what you set your starting f-stop to. The only way I see is to gradually compensate with iso while zooming from 3,5 to 5,6.

Auto iso kind of works, but then I can't adjust the exposure myself.
Gradual exposure is one of my favourite things in ml, but it seems to make the zooming from f3,5 to f5,6 worse than it is without the gradual exposure (tried different settings, 1ev/32 frames looks like the best). From f5,6 (@18mm) to f5,6 (@200) it improves the filckering though doesn't void it completely.
Looks like I'll have to wait for a fixed aperture 18-200 zoom Though on sony vg10 their 18-200 lens works without flickering.

Hello!

Could it be possible to implement expo lock (if you can call it like that) in video? It could be useful for non-fixed aperture zoom lenses. For example Canon 18 - 200 lens.
When you are @18mm max aperture ir 3,5, but @200mm it's 5,6, so when you zoom in, it gets darker. It could be very useful to set the exposition, and when you zoom in, the camera automatically adjusts the ISO to compensate for the darker f-stop.
Of course, you can set the aperture to f5,6 already in the beginning, but everyone knows, that the aperture adjusts itself all the time, while zooming, and it creates some flickering during the zoom motion. It doesn't happen when zooming from f3,5 to f5,6. So, if it could be compensated by automatically changing the ISO, that would create a usable zooming motion.
Another plus is that you could use the lens at f3,5 in the wider end, instead of f5,6 (now you can't because of the exposure change).

I once saw this video and this was from where I got the ideas, but I couldn't find the video anymore. But here it is.
When I watch it now, it looks too unreal (for example the cut out parking sign, some other things too).

What do you think about it?

Hello!

What do you think of using two DSLRs that are next to each other one recording a video and the other taking pictures in raw?
Could some resolution or dynamic range be gained if those pictures were somehow put in the video (similar to how GOP frame codecs work)?
I guess that in a static landscape shot a raw picture taken from the same camera could be used to gain resolution and dynamic range.
Also, I remember a video on youtube, where some guy explained how to get a better low light static shot in the same way I am thinking about this (take a picture with longer exposure, then use it in video).

So, has anyone tried something like this?
And what would be the workflow to use these pictures in video?


Sorry, if this question has been on here already.
Not really about magic lantern though, maybe someone could move this thread to General Chat?