I think it’s great that you are trying to get to know your local herpetological fauna by getting IDs checked. While it may not be legal to catch them for a closer look, or a photograph, the reality is it does no real harm, so long as you don’t destroy habitat in the process. Obviously not the thing to do if in a national park, but elsewhere, such as the local rubbish tip, I’d exercise my own judgement, bearing in mind the risk. One thing I would definitely NOT advocate is taking them home (to photograph). There are two reasons. Firstly, if you have reptiles of your own you could unwittingly transfer unnatural parasites or diseases to wild populations. Secondly you open yourself up to poaching or keeping without a license charges, which are serious.
Your IDs were correct…
Bynoe’s geckos can be identified by their long, thin tails and covering of irregularly sized raised scales with dark and light spots. The light spots can often be arranged in roughly transverse lines or bands, especially on the tail.
The key diagnostic feature of the Asian House gecko are two lines of dorsolateral blunt spinose scales running backwards from the base of the tail. They also have expanded ovate-shaped toe pads, with a claw emanating from the top surface on each digit.
PS
Depending on the terrain, you could use a roll of lightweight plastic grass/garden divider as a temporary ‘fence’ to corral specimens whilst photo graphing them.
u can find a 2nd hand older model for $1,000~
but don't let that stop you and your herping and if you only have a phone use that 
I'm 54 and never had a camera, just use my phone 
