I think the UHC-E filters are a good idea for binos. For most BT use, exit pupils don't exceed about 4.4mms and IMO, standard UHC and certainly OIII filters are just too dark for my tastes.
The DGM VHT filter looks similar. Recommended for smaller scopes and binoculars.
From the DGM site:
"The VHT is a "mid-band" Nebula/LPR filter that is the perfect match for smaller scopes, or binoculars that can use filters. This filter provides a good balance between the NPB and GCE with regards to contrast vs. field background and star brightness. In addition to the VHT`s excellent visual performance it is also a very good astro-imaging filter with high H-Alpha transmission, and transmission exceeding 90% from 486.1 to 501nm, which includes H-Beta and both Oxygen lines. As with all DGM filters, the durable Ion Assisted Plasma Coating Technology used to produce your filter ensures decades of high quality performance."