Barry_Green
Moderator
They all seem to start at about 1.6 to 1.9, and end up at 2.8 to 3.4. So it's a difference, but not a massive difference...
HMC40 - First Look
- Thread starter Barry_Green
- Start date
BobDiaz
The Professor
If you take the F-Stop and multiply the number by itself, you can compare it to other F-Stops:
Panasonic HMC40 F1.8: 1.8 x 1.8 = 3.24
Sony FX7 F1.6 : 1.6 x 1.6 = 2.56
(Panasonic) 3.24 / (Sony) 2.56 = Roughly 1.27x more for the Sony FX7; about 1/3 an F-Stop.
Some difference, but not a major amount.
1 F Stop = 2x
1/2 F Stop = 1.41x
1/3 F Stop = 1.26x
1/4 F Stop = 1.19x
1/6 F Stop = 1.12x
Bob Diaz
Certainly the lens plays a role in the camera's light sensitivity as Barry and Bob discuss above, but as a camera user I am not sure I should consider that separately. I care about the light sensitivity of the camera as a complete system (unless I have a camera with a removable lens). With a camera like the HMC40 there is not much I can do about the f1.8 aperture so I need to consider the sensitivity of the lens and sensor together since that's what I am stuck with.
On the way how the auto ND works: "Students can investigate what happens to the image if you cover up half the lens. Most kids are surprised that the picture doesn't get cut in half or go away but just gets a little dimmer. They learn that each little part of the lens helps form the entire image." -- https://www.galileoscope.org/gs/content/galileos-classroom
studio1972
Well-known member
Sorry if it wasn't clear, but that was what I meant actually. That comparing ISO values does not give you the whole story. Even adding in the lens data doesn't complete the picture. Another factor is the amount of noise in the image. If there is low noise you can add more gain without compromising the image quality.
It's complicated, I guess I'm trying to say.
Well we can certainly agree on that.
And to complicate matters even more, adding the same amount of gain will not have the same effect in different cameras.
Barry_Green
Moderator
The HMC150 does not have interval recording.
shphotovideo
Well-known member
Barry, will you be doing a book for the 40? How much of the 150 book would apply to it?
Barry_Green
Moderator
I am currently evaluating doing a book for the 40, yes. I originally thought I could expand the HMC150 book to include the 40, same as I did for the HVX/HPX, but I no longer think that's possible or appropriate. There's just too much difference between them. Several portions of the 150 book would apply, but much of it just wouldn't, and it would leave too much out. So if I do something on the 40, it'll have to be its own product.
Bryan_Lawler
Well-known member
If you buy the AG-MYA30G, how do you control the audio level? I don't see ch. 1 & 2 dial knobs on it. Is is menu driven?
Thanks.
Thanks.
Mark Whalen
Well-known member
There are level dials inset on the rear surface of the adapter, facing towards you. Each channel has its own dial.
BobDiaz
The Professor
shphotovideo
Well-known member
I just got my XLR adapter and mic. Just need a mic cable. Will take pictures of my setup later.
Bryan_Lawler
Well-known member
Thanks Mark and Bob (for the photo). All the photos online that I have seen not show that side. I was even at a trade show a couple days ago and the rep couldn't even tell me. They had the camera but didn't even bring the XLR adapter. I thought that was weird. So, again thank you both.
Hi guys,
I'm following this thread with great interest. A request, a frame grab/photo comparison, preferably of a cat and or kitten under less than ideal conditions.
I do animal rescue work and am looking for an upgrade for my Sony HDR-HC1. It has to be small and shoot decent video and photos.
Basically, I need something that I can hold a critter/string in one hand and shoot with the other.
Also is there a shoulder/neck strap for the HC40? I've saved the camera and my skin a couple of times thanks to that feature.
thanks,
gavin
I'm following this thread with great interest. A request, a frame grab/photo comparison, preferably of a cat and or kitten under less than ideal conditions.
I do animal rescue work and am looking for an upgrade for my Sony HDR-HC1. It has to be small and shoot decent video and photos.
Basically, I need something that I can hold a critter/string in one hand and shoot with the other.
Also is there a shoulder/neck strap for the HC40? I've saved the camera and my skin a couple of times thanks to that feature.
thanks,
gavin
TheaterDad
Member
Zebra setting for use with cine scene file.
Cine gamma settings don't have a knee to limit exposure. At what exposure level does blowout occur? I'm betting the right zebra setting could alert me to parts of the picture that are blown. On my old SD cam I used 85% and worked to make sure that faces weren't overexposed. Any general suggestions for avoiding exposure problems with cine gamma are welcome. I shoot theater stuff.
Cine gamma settings don't have a knee to limit exposure. At what exposure level does blowout occur? I'm betting the right zebra setting could alert me to parts of the picture that are blown. On my old SD cam I used 85% and worked to make sure that faces weren't overexposed. Any general suggestions for avoiding exposure problems with cine gamma are welcome. I shoot theater stuff.
TheaterDad
Member
Lens extender for HMC150?
I'd like to get more zoom than 13x. Has anyone done this successfully? A friend tried a 2x extender and found he was looking through a tunnel!
I'd like to get more zoom than 13x. Has anyone done this successfully? A friend tried a 2x extender and found he was looking through a tunnel!
philiplipetz
Veteran
Could you please say if the HMC40 has on LCD monitoring of each channel when the XLR adapter is attached. Also is the sound quality good enough that dual recording is not needed? Does attaching the XLR adapter take away any other function, such as the shoe for attaching lights? Is it tightly attached so that you do not have to worry about it. Does it change the balance?