Enlarger/negative carrier question

[stradibarrius]

I have a Burleigh Brooks 670 enlarger that I have just aquired. It is very well made and everything seems to be in working order.
It came with two negative carriers, one is 35mm and the other is larger and the actual opening is 54mmx69mm and tha distance between the reel teeth holes is 65mmx74mm.
Is the carrier for a 6x7 negative?

Are model 670 enlargers usually ones that will do up to 6x7?

 

[David Brown]

Most likely.

The "acid test", of course, would be to place a 6x7 negative in the carrier ...

 

[Sirius Glass]

Most likely.

The "acid test", of course, would be to place a 6x7 negative in the carrier ...

Oh, there is no basic test?

Steve

 

[Andrew O'Neill]

I would bet that the 6 and the 7 in 670 means that it's a 6x7 enlarger. My 4x5 enlarger is a Lucky (by Fujimoto, Japan) 4500...

 

[David Brown]

Oh, there is no basic test?

Steve

 

[stradibarrius]

Andrew, I think my enlarger was actually made by Lucky in Japan. I was told by someone who use to work for Burleigh Brooks, that Lucky made their enlargers.

 

[John Koehrer]

I think you'll find that it is a 67 carrier, The 54mm height is for the negative area, not full height of the film.
There is some difference in cutout between manufacturers of enlargers, just as there is in cameras.

 

[stradibarrius]

This is good news because a couple of weeks ago I got a Mamiya RB67 and I ma have a great time with it!

 

[Vaughn]

And with a file, you can make it a full-frame 6x7 carrier if so desired. Vaughn

 

[stradibarrius]

How large would the opening be for a full frame 6x7 negative?

 

[David Brown]

How large would the opening be for a full frame 6x7 negative?

Depends on the camera. Measure one of your negatives.