Am I the only one who finds this interesting:
I hadn't realized that the SP Studio Systems 37" octa languishing in my toy box is *very* close in size and shape to the much loved 100cm Rotalux Deep Octa.
The SP has a few things going for it: It's inexpensive, it's an umbrella-opening design, it accepts various speed ring inserts, and it has a recessed front baffle. I also like that the inner baffle reaches all the way to the side panels of the box. There's no light spill around the SP's inner baffle.
The Rotalux seems better built, and the inner reflective surface is nicely pebbled. Opening the DO is relatively easy but not nearly as easy as opening the SP.
The SP is 38" across while the Rotalux is 39" across. Both are roughly 23-24" deep (B&H says the DO is 39" deep; not so).
Never having shot them side-by-side I'm not going to claim the SP is a 100% DO workalike. However, it does offer the same desirable attributes of controlled dispersion while upping the ante a bit by virtue of the recessed front diffuser. The SP's interchangable mount capability also makes a taste of deep octa goodness available to non-Elinchrom shooters.
Anyway, I was just surprised to find the Elinchrom DO is not really the only "deep" game in town.
Dave F.







