The preorders for the EOS R, new RF lenses, and new EF / EF-M lenses are now open for $2299.00 at B&H, Adorama, Amazon, and Camera Canada.
You can find below all the pre-order links for the system. The expected ship date for the camera is October 9th and we can see a very high demand for this long-awaited camera!
EOS R
- EOS R pre-order for $2299.00 at B&H, Adorama, Amazon, Canada
 - EOS R with RF 24-105mm F4 L IS USM Kit pre-order for $3399.00 at B&H, Adorama, Amazon, Canada
 
RF Lenses
- RF 50mm F1.2 L USM pre-order for $2299.00 at B&H, Adorama, Amazon, Canada
 - RF 28-70mm F2 L USM pre-order for $2999.00 at B&H, Adorama, Amazon
 - RF 24-105mm F4 L IS USM pre-order for $1099.00 at B&H, Adorama, Amazon
 - RF 35mm F1.8 MACRO IS STM pre-order for $499.00 at B&H, Adorama, Amazon, Canada
 
EOS R Accessories
- BG-E22 Battery Grip pre-order for $490.00 at B&H, Adorama, Amazon
 - Speedlite EL-100 pre-order for $199.00 at B&H, Adorama, Amazon
 - Mount Adapter EF-EOS R pre-order for $99.00 at B&H, Adorama, Amazon
 - Control Ring Mount Adapter EF-EOS R pre-order for $199.00 at B&H, Adorama, Amazon
 - Drop-In Filter Mount Adapter EF-EOS R (CP) pre-order for $299.00 at B&H, Adorama, Amazon
 - Drop-In Filter Mount Adapter EF-EOS R (ND) pre-order for $399.00 at B&H, Adorama, Amazon
 
EF/EF-M Lenses


I think there are some discrepancies in mount adapter prices – both your prices and the ones on the B&H site. I suspect that B&H is wrong and you are linking to their prices.
Thanks. Fixed to align to the correct prices, not B&H prices 🙂