http://www.mediafire.com/?ct8zu1u8odtd3og
If you have any questions, please email me at DSLR_HyperCams@yahoo.com
Thanks,
Brent
on with my latest post!
8^)
This is an image showing how the Dual Filter System of your newer Canon models works.
This is applicable to any cam from the 400D and newer!(so, XTi,XS,XSi,T1i,T2i,T3,T3i,T4i,40D,50D,60D/60Da,7D,5DmII/mIII,1D(s) Mark III/IV/1Dx,etc,etc)
The front filter is the stock IR/UV Block filter. This filter remains intact for the mod.
The filter we remove/replace is LPF-2 only. That is for a "Standard" type mod where an IR/UV Block Filter is left INside the camera.(You would only remove both filters if you wanted a Full Spectrum Mod...otherwise, LPF-1 will ALWAYS remain intact for any other mods!)
So, if it stays intact after modification, why on earth would you want to spend big $$$ on a replacement filter that does the same thing???
You can install a Baader, AstroDon, Astronomik, or even a CLEAR Glass filter in place of LPF-2, and they will all perform EXACTLY alike.
The only purpose an LPF-2 replacement has is to keep AF calibrated. That is it.
UPDATE**2/24/2013**
Baader has redone their FBCF-400D filter to now be a much heavier/better IR/UV Block Filter, now called the Baader BCF-1 Filter.
This filter, when used in combination with the stock LPF-1 filter, provides COMPLETE IR blocking!
This system WILL perform slightly better than a system with: 1) only LPF-1, 2) LPF-1 + Clear Glass, 3) LPF-1 with older Baader FBCF-400D, 4) possibly even better than the new AstroDon filter(unsure as I am unable to test this filter..)
Point is still the same. Replacing LPF-1 with nothing, or a clear glass filter(to retain AF calibration) will still perform nearly identically to a BCF-1 system.
LPF-1 alone, or LPF-1 and Clear Glass system allows approximately = 0.01% IR transmissions.....
Baader BCF-1 + LPF-1 = approximately 0.0001% IR transmissions...
The difference of 0.01% and 0.0001%...are you really going to notice this????
NOPE!
99.999999% of users will never notice this.
Hope you find this useful!!And do not let ANYone tell you "you HAVE to buy the AstroDon filter because it is sooo much better"..Baader/AstroDon/Astronomik, doesnt matter. If they work just as good as a $30 Clear Glass filter, why spend 3-4x the cost??
In fact, most 'branded' filters I get come very dirty, and are impossible to get perfectly clean(the way I like my jobs to be), so I end up returning them.
Case in point, I have ~150+ clear glass mods out there, and ~300+ Baader type mods, and every single camera performs exactly like the others. for both AP and daytime!!
Cheers!
