Is This Video Card Decent?

You would be better off getting a 5670 or 6670 for about the same money. The amount of video RAM a card has is not indicative of it's performance

1. What camera's are used for feature films?

It depends on the feature film... but the Sony CineAlta and Arri cameras are pretty common. The cameras are in the US$100,000 range. There are some pro-grade Sony and Panasonic digital cameras that around $70,000... Consumer miniDV tape camcorders are not generally used. Occasionally, an independent film maker may use miniDV tape... Red makes great cameras, too. To improve your video capture, pay attention to the camera work on TV or at *most* movies... 1) NEVER capture video when the camcorder is handheld. ALWAYS use a stabilizing device... chair, table, monopod, tripod, SpiderBrace, SteadiCam/Glidecam, dolly, camera crane/jib... 2) NEVER zoom in or out. If you must, use manual zoom and zoom SLOWLY. 3) NEVER pan left/right or up/down. If you must, pan SLOWLY. 4) Typically, consumer camcorders have small lenses and small imaging chips so they do not handle low-light very well. Turn on the lights. Bring lighting with you - perhaps a video light. 5) Video is part of the "system". Audio is important too. Having a camera with and audio-in jack for connecting different external mics - and that the camcorder has manual audio control will help a LOT. In feature films, all of the audio is captured on specialized audio recording equipment (film cameras they use do not record any audio; digital cameras they use can capture audio, but that is typically stripped out). Nearly all the supporting audio for surround sound is added during editing (so you do not need a camcorder that records surround sound). 6) Makeup and wardrobe can be important... There's a LOT more, but this should get you started...

2. a good video editing software?

in case you are speaking approximately unfastened video modifying application, living house windows action picture Maker is perhaps the suited. For application which you will possibly desire to pay for, Sony Vegas professional is fairly good yet additionally relatively expensive. i in my opinion use Corel VideoStudio professional X4. You do might desire to pay some money for it, even with the undeniable fact that it is so lots greater useful than living house windows action picture Maker and is low-fee than Vegas professional

3. How to password protect my video clips, or the folder containing video clips?.?

you can mark it as hidden or you will need a software. If you want to mark it as hidden right click the folder you want to hide, at the bottom you will see hidden, mark it and your file would not be seen on the screen

4. Fujifilm X-T3 or BMPCC4k for musicvideos and feature film

As long as you can do the job right, there is no contest here. BMPCC4k all the way. The X-T3 is a nice mid-range photo camera, but it's a still camera first and a video camera second with all the limitations that entails. The BMPCC4K is a very solid entry level digital cinema camera. It lacks the more full featured functionality of it's bigger brothers like the BMPC or Ursa Mini, but it inherits from their roots.Yes, the file sizes are large and you should not underestimate the cost of data storage. If you are planning on shooting a feature length film in 4K RAW, expect to be using around 10-17TB of footage (I am working through post on a six episode TV series shot in 4K on a mix of Ursa Mini and BMPC4k currently. ) What you get for that extra data is well worth the cost though, especially on a large project. You get a degree of flexibility in your color that is unmatched in the DSLR/Mirrorless camera video shooting world, which will greatly assist in your color grade efforts in post. Also make sure you get your hands on a color target to simplify fine tuning your color as you go and save yourself lots of time in post. Do make sure you have sufficient lighting and know what you are doing when it comes to exposure though. While the Black Magic line of digital cinema cameras is a great line, it does not hold your hand. It expects you know what you are doing and does not do a great job of covering for your mistakes, even up in to the Ursa end of their product line. They can produce amazing images if you use them right, but used incorrectly, you will have far better results out of the DSLR/Mirrorless world.I have experience shooting video professionally with both a Canon 5D Mark iii (with Magic Lantern installed) and most of the Black Magic line of digital cinema cameras. There is no comparison between them when used properly. There are a few special cases I would choose my 5D over my Ursa Mini, but they are few and far between (mostly low light shooting where it actually has to look like low light.)The one thing that might be a gotcha for you would be that if you do weddings, the Black Magic line is really not well suited for weddings compared to the X-T3, but for music videos and feature film production where you can control the light to fit your needs vs the other way around, Black Magic wins hands down by a significant margin