My new R8 transfer unit.

[VideoFred]

Here are some pictures from my new R8 transfer unit, based on a Eumig projector.

1) slow/fast running engine: I used an old car (Ford Escort) back window wiper motor for this. Front window wiper motors are to big for this.
As you see, I just let it run against the original friction wheel.
I removed the left friction wheel.




2) I removed the original condenser lens/halogen spot and made a new house and opal glass diffuser for modern 50mm halogen spots.

*EDIT* This thing gets hot! Must try something else here.
*EDIT2* Led light is the answer, see further in this thread.

*EDIT3* I changed my opinion again :oops:
Halogen is a better light source then Leds...
But the refector principle is the best for diffusion and sharpness.
I am going to mount a 35mm 35Watt halogen spot in a tube (vertical).
Then point this tube at a 45° reflector.
I will post pictures and the results in this thread.

This was the first halogen setup with opal glass diffuser:



3) I mounted my machine cam on a precision miniature machine slide.
This slide is ideal for fine focussing.
I can switch the cam from one unit to another.
The lens is the Sony 45mm macro lens.
Thanks again Sparky for sending it to me.




4) I made a support on the projector to put the camera/slide on.
The camera can be aligned in all directions with bolts.
The same support will be made on my S8 unit.




Here's a detail from the aligning bolts:




5) Electronic pulse motor speed regulation:
This is a Conrad kit. Can be used for dimming the spot, too.
Needs a 12V/5A DC power supply.




I already did some first tests.
Everything works fine.

Now I must make the microswitch to trigger the Cinecap mouse,
and then the unit is ready to run.

Fred.

[tlatosmd]

I'm itching to see your results Fred, also to see what's the difference between S8 and R8 taken by the same telecining setup/operator, knowing your VDub and AVIsynth skills.

[VideoFred]

to see what's the difference between S8 and R8 taken by the same telecining setup/operator

Well... it depends on the footage also.
And the used R8 camera, and the operator...
I have here some R8 1958-1966 Kodachrome reels in perfect shape.

But I also have a 1964 Agfacolor R8 reel in terrible shape.
Terrible fade out and very very red colors.
It looks like only the red dye survived the years

Fred.

[tbruegg]

Hey Fred

Gratulations! this unit looks very tidy!

can you give some more information on the car wiper engine, i mean you use the speed controller unit to regulate the engine? this regulator, can you buy it as it is or is it a kit you have to put together yourself?

See you

Thomas

[VideoFred]

Hello Thomas,

Yes, I use it to regulate the wiper motor.
It's a kit, you have to solder the components yourself.
It's not expensive.. around 15 Euros.
It comes with a good manual.
And you could use it to regulate your Elmo
But it needs a decent 4A 12V DC input.

It works with very high frequence pulses.. gives very smooth slow running.

But a wiper motor has a very strong magnetic field.
So it will be smooth slow runnig with another power supply, too.
A regulated 4A-0/12V DC power supply should work, too.
But the pulses are giving a little more power at very slow speeds.

[tbruegg]

Thanks Fred, the motor on my elmo runs fine in slow speed so theres no need to change that. but i'd like to modify a elmo st-1200 in the future and then i definetly try to use your scheme with the car wiper engine. thanks again fred for sharing your ideas and for your support!

Thomas

[David M. Leugers]

Too cool Fred! Let us see the results when you get her running.


David M. Leugers[/list]

[Mitch Perkins]

Here are some pictures from my new R8 transfer unit, based on a Eumig projector.

Top notch work, old cheese! Looking forward with everyone else to some frames.

Mitch

[MovieStuff]

Neat-O

Roger

[gianni1]

Marvelous!

Gianni =D>

[Dr_Strangelove]

wonderfully mastered! Please post som results in high resolution as soon as you can, I'm dying to see the capabilities of this semi-Ford telecine machine!


/Jan

[christoph]

oh dear,
my unit looks like frankenstein in comparison ;)

however, i think i found a good way to cover my total lack of mechanical engeneering skill and hope to have a running unit by the end of the week... but out of interest, which speed range can you do with your motor?

your allignement system looks perfect, i guess those miniature machine slide things are kinda expensive though, no? i'm also wondering if the unit doesnt slip on the bolts and if you can move it left/right as well.. and rotate it and if so how..

i'm experimenting with IRC halogen spots atm because they have high light output and less heat than normal ones.. sending it through a 80A filter and the enlarger light box, then over a mirror, which works very well (although it is huge :)

++ christoph ++

[Sparky]

Hi Fred,
your new machine is looking great!
I like your bulb mount/diffuser- looks very pro! Are you still going to try the enlarger type diffuser though?
That motor drive looks impressive. I guess it runs a lot cooler than a linear regulator- are there any other advantages?
I'm glad you like the lens- its suprisingly good isn't it? What other lenses have you tried and how does it compare? I just got a set of c-mount macro tubes and have an olympus/c-mount adapter so will give an olympus 50mm a go. A friend said he would lend me a leitz apo macro lens with c-mount adapter to try- will be interesting to see how they compare to that little sony lens.
Great looking camera mount too- is that slide off a small lathe?

Good luck with it all and I look forward to seeing the results!

Mark

[VideoFred]

oh dear,
my unit looks like frankenstein in comparison ;)

Well, maybe you can use his bolts :lol:

but out of interest, which speed range can you do with your motor?

If you take a good look, you see I can move the motor upwards.
Now it is at the lowest possible position and it can run between 4 and 15fps. If I set it higher it will maybe run between 8-20fps.

your allignement system looks perfect, i guess those miniature machine slide things are kinda expensive though, no? i'm also wondering if the unit doesnt slip on the bolts and if you can move it left/right as well.. and rotate it and if so how..

Yes, the cost of the slide is around 100 Euros. The unit does not slip at all, I have made points at the top of the bolts. And yes, it moves left/right, up/down, forwards/backwards, and it is possible to rotate.

i'm experimenting with IRC halogen spots atm because they have high light output and less heat than normal ones.. sending it through a 80A filter and the enlarger light box, then over a mirror, which works very well (although it is huge

Very interesting... Keep us informed!

Fred.

[VideoFred]

I like your bulb mount/diffuser- looks very pro! Are you still going to try the enlarger type diffuser though?

Maybe.. later. First, I'm gonna try some Luxeon power Led setups.

That motor drive looks impressive. I guess it runs a lot cooler than a linear regulator- are there any other advantages?

A little more power at very slow speeds..

I'm glad you like the lens- its suprisingly good isn't it? What other lenses have you tried and how does it compare?

Yes, it's a very good lens! I tried a 25mm (from an old R8 cam) on my webcam, two years ago. And the 35mm on my machine cam. The old 25mm is a very good lens. The 35mm, as you might know, gives some unsharpness at the edges.

is that slide off a small lathe?

Yes, but it was 'made in China' so I had to modify some things.


Fred.