Robin,
http://www.zagg.com/ is another resource for protective films.
On-topic, I did end up using the snap-on Sony LCD protector for a while, and at one point something was pressed against it in the bag and it flexed inward and left a scuff mark on the camera LCD protector -- which I believe is plastic. I've had that replaced and have since gone with the proper Giottos protector which I absolutely love. There is a discussion on the SP 83010
here. My Oct 1 post at the end of that thread mentions a source and how I had to ask them to post the item on ebay since their checkout system does not support shipping to the US. This is the correct protector for the a900 and fits perfectly.
Some additional observations on this subject:
- Sony Protector
- When using outdoors with polarized sunglasses on, the resulting interference patterns will make you think Timothy Leary slipped something into your morning coffee.
- Has a significant negative impact on visibility of the LCD, particularly after the inevitable application of nose oil...
- Can trap grit and grind up the in-camera protector; the camera has to be sent to repair to replace it.
- Giottos Protector
- Practically invisible when installed, even when wearing polarized sunglasses.
- Very rigid and does not flex inward and threaten the built-in protector.
- Completely seals the area, preventing the ingress of dust, grit, etc. between it and the built-in protector.
- At twice the price of the Sony POS, has withstood 4x the handling that the Sony withstood before the plastic began to look a bit shabby -- and the glass protector still looks pristine when I clean it.