another f35 test...
- Thread starter firre
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Shiloh Arts
Well-known member
Re: another f35 test...
[quote author=firre link=board=Clips;num=1105717342;start=0#14 date=01/17/05 at 15:58:56]tomorrow i will get pictures of my setup with description nad costs... i'm tired today... go to sleep... So today we soot first pictures to short film "rose"
some sample shoots:
[/quote]
Hey Firre is this in Krakow square in Poland?!
Good Job by the way!
Piotr
[quote author=firre link=board=Clips;num=1105717342;start=0#14 date=01/17/05 at 15:58:56]tomorrow i will get pictures of my setup with description nad costs... i'm tired today... go to sleep... So today we soot first pictures to short film "rose"
some sample shoots:
[/quote]
Hey Firre is this in Krakow square in Poland?!
Good Job by the way!
Piotr
Re: another f35 test...
I'm completely stupefied by this "magical" ground glass. Can someone tell me what exactly the GG does to reduce the DOF? I understand the basic concept of DOF in relation to aperture. But I have no idea what GG does for you. Does it just act as a neutral density filter? Or is there something else going on here that this neophyte just isn't grasping? And what's the deal with spinning GG?
Thank you so much in advance for helping to clear this up for me!
Mike
I'm completely stupefied by this "magical" ground glass. Can someone tell me what exactly the GG does to reduce the DOF? I understand the basic concept of DOF in relation to aperture. But I have no idea what GG does for you. Does it just act as a neutral density filter? Or is there something else going on here that this neophyte just isn't grasping? And what's the deal with spinning GG?
Thank you so much in advance for helping to clear this up for me!
Mike
Re: another f35 test...
For people wanting to see photos of the setup, if you just go to http://www.firre.com/f35/ firre has a couple of shots there
For people wanting to see photos of the setup, if you just go to http://www.firre.com/f35/ firre has a couple of shots there
Re: another f35 test...
I realize this is just test footage and you've really shown how well your gadget works (looks awesome!), but I'd say don't get too carried away with DOF, especially shooting in such a picturesque location that the rest of the world doesn't want to see blurred out all the time. Seems like you are battling to keep your main subject in focus too. I'd say try to keep it a little more subtle. (again I know it's just test DOF footage).
I realize this is just test footage and you've really shown how well your gadget works (looks awesome!), but I'd say don't get too carried away with DOF, especially shooting in such a picturesque location that the rest of the world doesn't want to see blurred out all the time. Seems like you are battling to keep your main subject in focus too. I'd say try to keep it a little more subtle. (again I know it's just test DOF footage).
darkstyle8
Active member
Re: another f35 test...
wow, this stuff is amazing...Mad props. Homemade mini35..Magic bullet.. DVX . Sky is the limit
wow, this stuff is amazing...Mad props. Homemade mini35..Magic bullet.. DVX . Sky is the limit
Shiloh Arts
Well-known member
Re: another f35 test...
[quote author=firre link=board=Clips;num=1105717342;start=15#22 date=01/18/05 at 21:35:15]Tak to rynek starego miasta. [/quote]
Firre,
Ya tam bendem za month (I speak better than I write). What I was meaning to say is that I'm going to Krakow in about a month. I haven’t been in Poland in 8 years, now I’m not only going there for vacation but also to film a documentary. Anyway, did you go to any film school in Poland? I know that there are a couple of good ones there. My uncle got a degree in film, and he talked a lot about a director such as Polonski (spelling?? :-/). He use to have his little crew that made films on super 8, and 16's then got together and had their little festivals. How about you? Do you have a film scene there in Poland?
Sincerely,
Piotr Pawel Olejnik.
Keep up the good work!
[quote author=firre link=board=Clips;num=1105717342;start=15#22 date=01/18/05 at 21:35:15]Tak to rynek starego miasta. [/quote]
Firre,
Ya tam bendem za month (I speak better than I write). What I was meaning to say is that I'm going to Krakow in about a month. I haven’t been in Poland in 8 years, now I’m not only going there for vacation but also to film a documentary. Anyway, did you go to any film school in Poland? I know that there are a couple of good ones there. My uncle got a degree in film, and he talked a lot about a director such as Polonski (spelling?? :-/). He use to have his little crew that made films on super 8, and 16's then got together and had their little festivals. How about you? Do you have a film scene there in Poland?
Sincerely,
Piotr Pawel Olejnik.
Keep up the good work!
Re: another f35 test...
monte - that's older veresion f35.
Now it is shorter. I'm waiting now for focusing screen 5x5 cm. I'm going to cut it and paste in to 55mm filter ring.... There should be no chromatic or spherical aberration because this focusing screen already have condenser and it is a focusing screen
I'd like to experiment with medium or large format camera lenses. Ground glass will be bigger so grain should be less. Besides you don't have to use macro filters [less picture distortion]
Now my ground glas is made with +4 close-up - one side grinded to flat [1000grit]- uff :/
waiting for....lightweight support,... rods,... LCD...
monte - that's older veresion f35.
Now it is shorter. I'm waiting now for focusing screen 5x5 cm. I'm going to cut it and paste in to 55mm filter ring.... There should be no chromatic or spherical aberration because this focusing screen already have condenser and it is a focusing screen
I'd like to experiment with medium or large format camera lenses. Ground glass will be bigger so grain should be less. Besides you don't have to use macro filters [less picture distortion]
Now my ground glas is made with +4 close-up - one side grinded to flat [1000grit]- uff :/
waiting for....lightweight support,... rods,... LCD...
BajotierraTV
Member
Re: another f35 test...
Hey Firre,
Very impressive stuff man. I've used the micro35 for a few projects and your stuff looks just as good! When do you think you'll have a final version? I would like to purchase one from you..
David M.
Hey Firre,
Very impressive stuff man. I've used the micro35 for a few projects and your stuff looks just as good! When do you think you'll have a final version? I would like to purchase one from you..
David M.
Re: another f35 test..
Re: another f35 test..
AndyJ:
To properly frame scenes i use 3x1mm neodyme magness:
http://www.firre.com/f35/f35_rotate.jpg
http://www.allegro.pl/show_item.php?item=39304279
and then rotate all in post. i would rather like to do it in post than use not very good optical homemede mirror system
Re: another f35 test..
AndyJ:
To properly frame scenes i use 3x1mm neodyme magness:
http://www.firre.com/f35/f35_rotate.jpg
http://www.allegro.pl/show_item.php?item=39304279
and then rotate all in post. i would rather like to do it in post than use not very good optical homemede mirror system
Re: another f35 test...
[quote author=Mike link=board=Clips;num=1105717342;start=15#24 date=01/18/05 at 22:43:34]I'm completely stupefied by this "magical" ground glass. Can someone tell me what exactly the GG does to reduce the DOF? I understand the basic concept of DOF in relation to aperture. But I have no idea what GG does for you. Does it just act as a neutral density filter? Or is there something else going on here that this neophyte just isn't grasping? And what's the deal with spinning GG?
Thank you so much in advance for helping to clear this up for me!
Mike[/quote]
Mike, I don't know if anyone has answered you yet so I'll just go ahead an explain the ground glass.
The ground glass acts as a rear projection screen. If you place a 35mm lens a few inches infront of frosted (ground) glass it will project an image. Now, say you hold this ground glass about an inch away from some text on a magazine. You won't be able to see the text (or it will be very blurry). Now, if you press that same ground glass against the text on the magazine it's in clear focus.
The 35mm lens allows you to focus the image onto this screen and the DVX100A simply films the picture on ground glass screen. Your 35mm lens focus decides what is clear and what is blurry and the dvx simply records what it sees projected onto the screen.
[quote author=Mike link=board=Clips;num=1105717342;start=15#24 date=01/18/05 at 22:43:34]I'm completely stupefied by this "magical" ground glass. Can someone tell me what exactly the GG does to reduce the DOF? I understand the basic concept of DOF in relation to aperture. But I have no idea what GG does for you. Does it just act as a neutral density filter? Or is there something else going on here that this neophyte just isn't grasping? And what's the deal with spinning GG?
Thank you so much in advance for helping to clear this up for me!
Mike[/quote]
Mike, I don't know if anyone has answered you yet so I'll just go ahead an explain the ground glass.
The ground glass acts as a rear projection screen. If you place a 35mm lens a few inches infront of frosted (ground) glass it will project an image. Now, say you hold this ground glass about an inch away from some text on a magazine. You won't be able to see the text (or it will be very blurry). Now, if you press that same ground glass against the text on the magazine it's in clear focus.
The 35mm lens allows you to focus the image onto this screen and the DVX100A simply films the picture on ground glass screen. Your 35mm lens focus decides what is clear and what is blurry and the dvx simply records what it sees projected onto the screen.
Re: another f35 test...
It's been discussed. Particularily with MF lenses. Large format lenses are just too slow for these purposes and much more expensive.
It would certainly produce nice imagery but since MF lenses aren't cheap and not easy to come by most people just stick with 35mm adapters. They're fast and accessable.
It's been discussed. Particularily with MF lenses. Large format lenses are just too slow for these purposes and much more expensive.
It would certainly produce nice imagery but since MF lenses aren't cheap and not easy to come by most people just stick with 35mm adapters. They're fast and accessable.
Re: another f35 test...
Hi Skital- thank you very much for explaining the GG concept to me. It makes perfect sense now.
I have around 5 or 6 Canon FD lenses so this looks like it might be a fun project.
Approx. how many f-stops do you lose from the GG?
Also, is there a inverse relationship between the size of your imaging area and the minimum allowable DOF?
Hi Skital- thank you very much for explaining the GG concept to me. It makes perfect sense now.
I have around 5 or 6 Canon FD lenses so this looks like it might be a fun project.
Approx. how many f-stops do you lose from the GG?
Also, is there a inverse relationship between the size of your imaging area and the minimum allowable DOF?
Re: another f35 test...
How many stops you loose really depends on the materials used. But it is safe to say that you will loose at least a full stop with any commerically available ground glass.
Imaging area doesn't matter for these so long as you can capture the full 35mm frame on the ground glass. You'll have the same DOF as the 35mm lens provides as if you were shooting on 35mm.
How many stops you loose really depends on the materials used. But it is safe to say that you will loose at least a full stop with any commerically available ground glass.
Imaging area doesn't matter for these so long as you can capture the full 35mm frame on the ground glass. You'll have the same DOF as the 35mm lens provides as if you were shooting on 35mm.
Re: another f35 test...
Wow, I have had a flash of insight from the test footage posted here, thanks for sharing.
Normally I'm against 'softness' in video, which is why I prefer the DVX to the XL1. But in this footage, it is an asset. Of course, it helps to be in a wonderfully photogenic place like the cityscapes of Krakow!
Anyway, my insight is that the audience will perceive a 'relative softness' in each scene. If you can tell a story using the depth of field as the narrator, the overall softness of the image will contribute rather than detract from the movie.
Lovely images.
Wow, I have had a flash of insight from the test footage posted here, thanks for sharing.
Normally I'm against 'softness' in video, which is why I prefer the DVX to the XL1. But in this footage, it is an asset. Of course, it helps to be in a wonderfully photogenic place like the cityscapes of Krakow!
Anyway, my insight is that the audience will perceive a 'relative softness' in each scene. If you can tell a story using the depth of field as the narrator, the overall softness of the image will contribute rather than detract from the movie.
Lovely images.