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mercer

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Posts posted by mercer

  1. Thanks to Andy Lee I bought Tokina ATX Pro 28-70mm F2.6-2.8 + Zhyongi speedbooster. I used them firstly in this promo video project and I think this is awesome connection!

    The difference between Panasonic lenses used from 0 minute - 2min. 28sec of the video is obvious and gives the picture completely different character:

     

    It looks great, very organic, filmic. 

  2. I've been looking for some 16mm, c mount versions in case I ever get the bmpcc. Do you still have your pocket cam? If so, would you mind doing a test with the kerns on it?

  3. I don't know what they are called but the little orange dots :)

    That's them. I think it's called visifocus and they are amazing. There's also something very nice about the aperture clicks. Sure, a smooth aperture would be better but the way the blades click into place is subtle. Great lenses!!!

  4. Yeah, even if they vignette a bit more I think they win. I also simply love the way they are built. Those focus distance markers are engineer brilliance. 

    Is that the visifocus? My d mounts have them and they are pretty ingenious. 

  5. As much as love those tevidon lenses. I think these kerns may have 'em beat? How do you like them. Maybe later in the week, I'll get out my d mount kerns. 

  6. I think it is the pairing of cameras and lenses that change the palette. For instance, when I shoot with my NEX paired with Minolta MD lenses, the images have an inherent 70's horror movie look... Something akin to Let's Scare Jessica to Death. Very little post coloring is needed. So for a quick look in a pinch, that is an option. Believe it or not, even my Pentax Q7, paired with vintage Cosmicar TV lenses gives me a very specific look, right out of camera. It's not for everything, but if I want to get to a quick 16mm analog look, I'll put my little Q7 on my rig. 

  7. This is the one I was looking at for background actors. In the shot I will be following and/or they will be pushing the cam, on a steady cam, through a party. The conversation the main two actors wil be having will be commentated by the other background actor's, but in a comical way... Meaning they may say something about liking a guy and as they pass a group of people, a background actor, having a totally different conversation will be heard saying, "not a chance." I don't have access to a boom operator skilled enough to follow the flow and move the mic back and forth, so I want to do the old recorder in pocket and lav trick. I could need anywhere between 6 to 10 actors for these background characters... That's a lot of money for quality recorders, so I was hoping something like this might work and not sound too horrible...

    http://www.bhphotovideo.com/c/product/1004584-REG/philips_dvt_1100_digital_voice_tracer_recorder.html

     

  8. ​to put it in camera terms, bit rate is like dynamic range and sample rate (kHz) is like frame rate. 24bit has a range of 144db while 16bit has a range of 96db. the latter is more limiting in terms of how from you can swing between your lowest lows and highest highs. But just like how cameras also have a "useable" dynamic range, the noise floor in an audio recording device is also a limiting factor. either way, 24bit gives you more room to work with.

    a sample rate of 48khz is adequate for dialogue, but if you were to be recording sound effects that you might want to slow down in post and manipulate to create new sounds, you'd want to record them at a higher sample rate (higher resolution) to capture more detail in the audio. in camera terms, it's like if you wanted a slow motion shot. if you shot at 24fps and slowed it down to half speed in post, you'd be doubling frames. but if you captured it at 48fps and slowed it by half, it would still be smooth in a 24fps sequence.

    Okay, that makes sense. So, is there any truth to what I read that 96 kHz can actually cause distorted sounds? If recording 96 kHz, do I still want to keep my dialogue peaking at -12, or does that change?

    Next question, I am using an older model Olympus field recorder. I just finished editing a short and I was pleased with the sound quality. I recorded it at 96/24. After reading that sometimes recording too high can be detrimental, I looked at my recorder and found my options to be

    1. 96/24 

    2. 88.2/24

    3. 48/16

    4. 44.1/16

    5. 44.1/mono

    Since I do not have a 48/24 option, should I just stick with the 96/24?

    Also, I wrote in a previous comment that I have an upcoming shoot that requires a lot of movement and a lot of audio. I was going to set up my main two actors with the Olympus recorders I have, but I also was thinking of getting inexpensive voice recorders for the background players. To keep the cost down, I have found an inexpensive recorder that records wav files but the specs are only slightly higher than the highest MP3 recording settings. I think it's 24/396. Will this audio be usable because it is a wav file or is it basically like using an uncompressed equivalent to MP3 quality?

    Again sorry about all the questions and I really appreciate any info. 

  9. Sorry for all the questions, I get that 24 bit 48khz is ideal. But I have an upcoming shoot that takes place at a dinner party. The camera is going to float through the room with my two main characters, but I want to hear snippets of background conversation. It's important to the scene. My plan is to have as many as a dozen audio recorders in the actor's pockets. There are some inexpensive voice recorders that record wav files with the bitrate numbers slightly higher than what an MP3 would record at it's highest settings. 

  10. Don't record in MP3 format for any broadcastable material - MP3 quality audio present in a mix can fail QC (in TV land) - 24 bit 48k is used in 99.99% of every film (AAA titles) and TV mix I've done - music, sometimes at 96k if you're feeling extravagant!

    Okay, what does the 24 bit number pertain to? And also the 48khz number. What about a lower wav recording... 16bit 44.1 or even lower wav recording? Is the bit number similar to the dynamic range number in video?

  11. The next question then becomes... Are you gaining anything by recording in wav, when it will be compressed later for delivery anyway? Why not just record at a high bitrate MP3?

  12. For spoken dialog, 16bit 44.1kHz MP3/AAC 128kbps or higher is plenty good. Here's how you can prove it to yourself: record a test at 96kHz 24bits WAV. Convert this recording to 128kbps 44.1 MP3 or AAC. Do all post work on the recordings, then export for delivery- H264 will use AAC. Can you hear any difference?

    Everything we hear now is AAC or MP3, except for the movie theater and BluRay. Far more important than WAV vs. AAC/MP3 is the quality of the preamps (Sound Devices is my favorite- best bang for buck), mic, mic placement, recording level, and ambient noise level. For music and Foley fx, higher rates and uncompressed can be helpful, though the final mix will be compressed in most cases for delivery.

    If everyone listened using Stax headphones and B & W speakers, things might be different ;)

    Ok thanks, I am a little ignorant when it comes to audio... What does the kHz and the bit number represent... Or measure?

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