Wanderlust 4x5 P&S

[rdenney]

No FL lobbying from here - I can see uses for either a 65 or a 90 version. Looks like opinion here is pretty evenly split. So I think Ben should just go with whichever one will be easiest/fastest/cheapest to bring to market - and if there's no difference, then whichever he prefers himself.

No, no, no. Not one or the other. Both.

Rick "thinking it's an easy CAD alteration" Denney

[Oren Grad]

No, no, no. Not one or the other. Both.

Sure - if he can finance production for both, that would be great!

[Ben Syverson]

Ha, thanks guys. The CAD alteration is simple, but striking a new mold costs tens of thousands of dollars. Given that it's pretty evenly split, we'll probably start with 90mm, since the 90s are cheaper and more abundant. We would need to sell around 500 units before a second focal length made sense. I'm confident we could sell many more than that, but it's a bit hard to gauge how quickly we would hit that mark.

Rick, thank you so much for those measurements. They help a tremendous amount! If we're able to put all our parts in a family mold, adding a simple friction-fit cap might not increase our costs very much. And it would certainly be a huge bonus.

[rdenney]

Ha, thanks guys. The CAD alteration is simple, but striking a new mold costs tens of thousands of dollars.

You might consider a family mold for both focal lengths, given that the market seems to be evenly split, and assuming that it doesn't increase the mold costs significantly. That would double your product with respect to mold costs, and would be worth more than the cap.

For the cap, consider this: Go to Home Depot and get a PVC or ABS pipe "cap" in 4" inside diameter. Design your unit so that the round section behind the focus is a snug fit inside that cap. That would keep you from having to include the cap in the mold, or even supply it. People could buy their own if they wanted it. Or, they could buy a coupling instead of a cap and have a lens shade and possible filter holder. That would also give you some mold real estate.

Rick "still lobbying for both focal lengths" Denney

[Steve Smith]

The CAD alteration is simple, but striking a new mold costs tens of thousands of dollars.

Is it possible to mould the cone and it's mounting piece separately and join them with a spacer? Thin spacer for 65mm, thick spacer for 90mm.


Steve (who sometimes does vacuum moulding but makes his own moulds which probably cost less than $10 to make).

[Ben Syverson]

Is it possible to mould the cone and it's mounting piece separately and join them with a spacer? Thin spacer for 65mm, thick spacer for 90mm.

It's possible, but if you're molding two cones, you might as well mold two cones with integrated backs. That way you only have two parts, versus five.

[BTMarcais]

I think @ the 100$ price point I'd probably buy whichever you put out first (although I'd push for the 65), and you should pretty easily be able to hit your 500 mark. Simple is good.

-Brian

[jon.oman]

At your price point, I would be interested as well!

[David Aimone]

Absolutely! And I'm hoping it is ready for my Ireland trip this autumn...

At your price point, I would be interested as well!

[Ole Tjugen]

http://www.schneiderkreuznach.com/ar...an_su_1963.pdf
http://www.schneiderkreuznach.com/ar...an_su_1967.pdf

All the measurements you need for the 90mm f:6,8 Angulon and the 65mm f:8 Super Angulon. And the rest of the Angulons too.

EDIT: I'd really love a version for 47mm SA XL too!