Larger Format Photography

[wootsk]

it was an unproductive weekend. i fired 2 shots on still life and try stand developing again. End up one sheet was totally unexposed. probably a mistake while exposing the shot hahah. wasn't too pleased with the other sheet too. but life goes on.

any1 interested in shooting at Bright Hill temple near Bishan this Sunday morning ? It is big and spacious enough not to get chase away. Full of architectural structures for doing your camera movements. there are some 3D wall cravings i think.

Error in taking shots and developing are good. The lesser you have in this area, the more you find yourself harder to improve. I keep alot of my mistakes so as to reflect on them and show to others how newbie I am. Still looking for unmasked negative for experimental purpose, hopefully I can find it fast.

 

[lkkang]

haha.. my mother-in-law is "parked" there....
you need good weather to do this. Nice place to shoot, very spacious and interesting architecture.. I need my wide bellow to come in, else my 75mm cannot move !!!! very "peak chek" . If arrive this week, will chiong for this one..

Billy

it was an unproductive weekend. i fired 2 shots on still life and try stand developing again. End up one sheet was totally unexposed. probably a mistake while exposing the shot hahah. wasn't too pleased with the other sheet too. but life goes on.

any1 interested in shooting at Bright Hill temple near Bishan this Sunday morning ? It is big and spacious enough not to get chase away. Full of architectural structures for doing your camera movements. there are some 3D wall cravings i think.

 

[zguy]

Still looking for unmasked negative for experimental purpose, hopefully I can find it fast.

sorry what is unmasked negative?

 

[zguy]

haha.. my mother-in-law is "parked" there....
you need good weather to do this. Nice place to shoot, very spacious and interesting architecture.. I need my wide bellow to come in, else my 75mm cannot move !!!! very "peak chek" . If arrive this week, will chiong for this one..

Billy

a few of my close ones are also staying there : ) i also can't do much movements with my 100mm. i am trying to DIY a 6x17 camera using that lens. Now I am prototyping it using cardboard. Still no idea how to put and hold in place the 120 film spools yet. Seen a lot of handmade cameras online and they give a lot of inspirations. DIY is usually more fun than about money because you have to spend quite a bit of time on it and a big risk of the project dying prematurely haha.

 

[kgston]

sorry what is unmasked negative?

Colour negative film without the orange base.. Do a search on Rollei Scanfilm CN200, CN400 if you are interested

 

[lkkang]

6x17 is one of the key reason I took up large format.

But, I ended up with 4x5. Still, with a 6x12 film back, I am able to get close to 6x17 format by shifting the lens from side to side. I can show you how this china made 6x12 was designed. Perhaps by studying it, you can have a better idea on how to do this roll film back can be created. Another method is to get a 5x7 back and then get a 6x17 roll film holder and attached to it.

I am an electronics engineer by profession. I sometimes need to deal with machine rooms to do some simple mold repair or jigs and fixture design.
If you need some simple CNC on milling machine parts, let me know. I might be able to do something.

Billy

a few of my close ones are also staying there : ) i also can't do much movements with my 100mm. i am trying to DIY a 6x17 camera using that lens. Now I am prototyping it using cardboard. Still no idea how to put and hold in place the 120 film spools yet. Seen a lot of handmade cameras online and they give a lot of inspirations. DIY is usually more fun than about money because you have to spend quite a bit of time on it and a big risk of the project dying prematurely haha.

 

[wootsk]

6x17 is one of the key reason I took up large format.

But, I ended up with 4x5. Still, with a 6x12 film back, I am able to get close to 6x17 format by shifting the lens from side to side. I can show you how this china made 6x12 was designed. Perhaps by studying it, you can have a better idea on how to do this roll film back can be created. Another method is to get a 5x7 back and then get a 6x17 roll film holder and attached to it.

Ya, you should consider a 5*7 camera instead of a 4*5 camera for shooting 6*17. If you mean double exposing the film by forwarding the roll and shifting the front to make a 6*17 image from a 6*12 roll back, there will be a problem of double exposure timing in the middle as well as an issue with accuracy of the rolling.

Some general knowledge from vege bird for those who might need it:
1. Large format lens IC (image circle) are mostly tested at F22. So if you see a lens spec IC size, you can assume that it is tested at F22 unless stated. IC can varies between different F-stop.

2. To know how big an IC is required to cover your film without vignetting and how much movement you can have with the lens on a particular film format, you will need to know the diameter of your film as compared to the IC of the lens.
Diameter = Square Root((length * length) + (breath * breath))
Note: The formatting for sheet films are in inches and 120 format films in cm.

I am an electronics engineer by profession. I sometimes need to deal with machine rooms to do some simple mold repair or jigs and fixture design.
If you need some simple CNC on milling machine parts, let me know. I might be able to do something.

Billy

I do got some stuff need to CNC some time ago (before I know you), but in the end gotten ready made from china when I found it on Ebay, it is just 2 simple piece of metal allowing #00 shutter to mount on #0 Lens board.

 

[zguy]

I am an electronics engineer by profession. I sometimes need to deal with machine rooms to do some simple mold repair or jigs and fixture design.
If you need some simple CNC on milling machine parts, let me know. I might be able to do something.

Billy

ha ok...good good at least now i got contact for CNC stuff already. I also need to do some woodwork.
see this guys homemade 6x17 - http://on-your-kitchen-worktop.blogspot.com/2011/05/i-adore-6x17-camera.html

in case u all think i going OT, here is a link for a homemade 4x5
http://on-your-kitchen-worktop.blogspot.com/2010/10/diy-4x56x12-ps-version-04.html

hhaa

 

[wootsk]

Colour negative film without the orange base.. Do a search on Rollei Scanfilm CN200, CN400 if you are interested

Thanks for the help in reply. After some thinking, I am considering getting the film for the "project" I mentioned to you. Sadly the recent MO is over, I will have to find ways to get it myself. (Maybe HK got loads of it on shelf, will contact you if that happens )

Anyway, when we did the cross processing for the unmask and mask negative the last time, can you check if the film color is very off? If I am not wrong, the image is petty over-exposed, is it due to your camera setting for negative or due to overdeveloping? I am trying to recall from memory as I am comparing the chemical on both color developer.

 

[lkkang]

I not so daring.. haha...
I am only thinking of merging the 2 picture in computer

Ya, you should consider a 5*7 camera instead of a 4*5 camera for shooting 6*17. If you mean double exposing the film by forwarding the roll and shifting the front to make a 6*17 image from a 6*12 roll back, there will be a problem of double exposure timing in the middle as well as an issue with accuracy of the rolling.

 

[wootsk]

I not so daring.. haha...
I am only thinking of merging the 2 picture in computer

Might as well get a 6*9 if that is your aim...

There is a few flaw in this plan and one of it will be changing lighting. Anyway, I will prefer to see a 6*17 film rather than a computer stitched one.

When you are doing the setup, you will need to have few calculation in mind. Firstly will be that focus. Shifting the front or back will cause certain degree of increase/ decrease in distance from lens to film back. So if you shifted +2 in your front and focused, to ensure that focus is still accurate, your next shift will be -2. (Provided your rear is always at 0) Also a smaller aperture will be better to cover such mistake as well. But it will means longer exposure and higher chance of lighting change in second exposure.

 

[kgston]

Thanks for the help in reply. After some thinking, I am considering getting the film for the "project" I mentioned to you. Sadly the recent MO is over, I will have to find ways to get it myself. (Maybe HK got loads of it on shelf, will contact you if that happens )

Anyway, when we did the cross processing for the unmask and mask negative the last time, can you check if the film color is very off? If I am not wrong, the image is petty over-exposed, is it due to your camera setting for negative or due to overdeveloping? I am trying to recall from memory as I am comparing the chemical on both color developer.

please do.. i dunno leh.. that roll we tried at roger's place is not I shoot one.. so I cannot vouch for exposure accuracy.. I think it was under developed imo.. let me know if you find any of that scanfilm in hk.. haha.. esp a CN200 one..

 

[Nikkornos]

I am an electronics engineer by profession. I sometimes need to deal with machine rooms to do some simple mold repair or jigs and fixture design.
If you need some simple CNC on milling machine parts, let me know. I might be able to do something.

Billy

Brother, something for you : http://forum.xitek.com/showthread.php?threadid=819609

LF in Amsterdam this weekend.

 

[Nikkornos]

E6 LF self develop at room temp:

http://forum.xitek.com/showthread.php?threadid=645958

 

[Nikkornos]

LLKang

617 format DIY. You should read.

http://forum.xitek.com/showthread.php?threadid=884638

I have the Fuji 6X9, and it is a very portable and high quality system.

 

[lkkang]

thanks for the poison :devil:

LLKang
617 format DIY. You should read.
http://forum.xitek.com/showthread.php?threadid=884638
I have the Fuji 6X9, and it is a very portable and high quality system.

thanks for the tip.

for the mean time, yes, I will take 2 shots to complete a 6x17 format shoot. There is also a possibility to get those 6x17 back that can be attach to a 4x5 back. But they are costly ( about US$600 )... With that, I can shoot 617 with a single exposure.

Might as well get a 6*9 if that is your aim...

There is a few flaw in this plan and one of it will be changing lighting. Anyway, I will prefer to see a 6*17 film rather than a computer stitched one.

When you are doing the setup, you will need to have few calculation in mind. Firstly will be that focus. Shifting the front or back will cause certain degree of increase/ decrease in distance from lens to film back. So if you shifted +2 in your front and focused, to ensure that focus is still accurate, your next shift will be -2. (Provided your rear is always at 0) Also a smaller aperture will be better to cover such mistake as well. But it will means longer exposure and higher chance of lighting change in second exposure.

 

[Lenscapes]

looks like LF thread getting hotter.

 

[zguy]

looks like LF thread getting hotter.

when r u getting yrs?

 

[Nikkornos]

There has never been a better time for Large Format

Fujifilm production of film is as per normal, apart from a few products:

4X5 Fujichrome 64
4X5 Astia Slide

 

[mamypoko]

Only thing now is to learn E6 processing, will give it a try by December with a Tetenal E6 kit hopefully

There has never been a better time for Large Format

Fujifilm production of film is as per normal, apart from a few products:

4X5 Fujichrome 64
4X5 Astia Slide