Odosia Meade does not make smaller focal reducers.
Try Starizona if you are really interested in a stronger focal reducer (their NIght Owl line has a 0.4x reduction factor, for example).
However, you probably don't want to go that route since your problem is the size of the sensor that you have chosen to go with your OTA -- that sensor is not great for deep sky work anyway. You can get cameras with larger, and cooled sensors from dozens of different camera manufacturers.
The Lagoon Nebula is huge, and you will need a very large sensor. I took this image with just 455 mm focal length on an APS-C sized sensor: http://www.w7ay.net/site/Images/Lagoon.png You may need a full frame sensor and a Night Owl to capture M8 in a single frame with your OTA.
However, if the nebula is too large for your camera, you can also use mosaic methods to capture M8 in small pieces at a time. It is just a lot of time down the drain, though.
Chen
