I can't find anything appropriate to ask this in (fixture accessory forum.....) either in Facebook or here so I picked a location that causes me to ask this: sort of.
I am scratching my head in the difference in ETC Ellipsoidal lenses - primarily looking at 26 degree but all should be the same. Seems there are Original, CASS426, 426EDLT, EDLT, XDLT and ????
I am someday going to purchase led Ellips. I currently own all ETC conventional S4's. Originally 575's then added 750's and changed the bases of the 575's to 750's so they would all be the same. Well a great deal came up for EDLT lenses used so I jumped on it thinking that would be good for my current incandescent fixtures and when I get LED's I would have em already.
So I received them and don't see any color coding or drafting symbols on them. Did some research and I believe it says the EDLT's have dual lenses but these have single, set back in a bit. When I started comparing them to my existing lenses I see the original 575's have a lens that has a gap around the glass and the 750's do not have the gap plus the 750 lenses seem to open up larger at the output end. So I looked at the barcoding stickers on the lenses and they all say CALS426. The invoice says ETC CALS426 26-Degree lens Tube and the written description on their web site is the ETC explanation of EDLT lenses being so much clearer and better.
Well I put a gobo in a fixture with the lens gap and then compared to the ones I purchased as EDLT and could not see any difference. Still had the cloudy look. When I cupped my hands around the end of the lens tube I could make the pattern pretty clear; donut?
When I search EDLT lenses on Google it shows a couple of types: mainly with a color code and drafting symbol and without anything, just black. The ones with the color coding that had multiple photos showed a lens at both ends of the tube and the front one pretty much at the very front, different than those I have now that recess back into the tube. And again mine have only one lens.
I read on the ETC site that the XDLT lenses are due to be distributed in July 21, therefore I figured they aren't out yet and only found one; a 50 degree for sale. Lots of EDLT both with the coding and without and lots like my older lenses. One supplier was wiling to quote a price for XDLT however they had none on their site to order.
Sooooo what's the deal? I don't know if these are going to work well in led ellipsoidals (currently looking at the S4 LED Lustr Series 2's or if I have to now purchase the confirmed color coded lenses or XDLT when they are out. I realize anything will "work" but claims make it seem the higher up the food chain the clearer and brighter they are.
What are the claimed EDLT lenses that are selling as CALS426 as well as the 426EDLT along with my other confusion.
Thanks in advance.