so, do you guys consider my 6x9 to be "large format"?

[Pete Watkins]

If I use my 6x9 rollfilm back on my 4x5 Wista does that make it a medium format camera. Of course not! I see your 6x9 as a large format camera.
Best wishes,
Pete.

[David A. Goldfarb]

If I shoot rollfilm on one of my LF cameras, I usually say I'm shooting medium format with a LF camera.

[Bill_1856]

This is silly. "Large Format" is a state of mind, not a film size.

[Greg Lockrey]

This is silly. "Large Format" is a state of mind, not a film size.

WEALTH is a state of mind. "Large format" is just the size of your tool.

[Aender Brepsom]

Pete, you've got a good point here.

There are 4x5" backs for 6x9cm cameras (for example for the Horseman VH), so it works the other way round too.

For me, my 6x9 Ebony clearly is a "large format type camera" because it works just like one, except for the costs per shot. For my purposes, its film size is large enough, and that is all I care about. Just enjoy it ...

[J Peterson]

no

[Rider]

I love the different approaches taken to answering this question. Shows that we're all looking at a different ground glass (and some of us can't take our eye off of it)!

[Andrew O'Neill]

Can your 6x9 adapt to shoot 4x5 full frame? Then I would consider it LF. Which camera do you have?

[Alan Davenport]

This is silly. "Large Format" is a state of mind, not a film size.

Gotta disagree. "Large" refers to size. In this case it specifically refers to the size of the film, and 4x5 is the lower limit of "large format." If you put 4x5 film into a non-adjustable, fixed focus box camera it will still be large format. Likewise, if you put 6x9 film into a view camera with every possible movement it will still be medium format.

What the heck is so alluring about gaining entry to the "Large Format Club" that causes half the medium format users in the world to need to believe they're using large format?

[Ole Tjugen]

It's less than 100 square cm, so I'll have to say no.

That's the only workable definition of LF I've seen...