As you can see i over came this by using a Manfrotto magic arm, and super clamp.
The security observed me using this and did not bother in the slightest.
While using the clamp and magic arm, i treated it like a tripod and so was using my cable release to gain much longer shutter speeds.
Tip 2
- Don't for get your polariser filter.
To try and reduce the reflections you gain shooting through the glass, a circular polariser filter is not perfect, but cuts down the problem loads.
Nothing will stop the other members of public and their point and shoots, using the flash - still amazed at what they recon the on camera flash will light up.
That its, i can really recommend the Shard, it was a fantastic experience.
Keep in touch in the comments bar bellow...
Thanks
Lee