Lots of beautiful frog photo's in this thread.
I haven't taken many frog or toad photo's with my Pentax gear for some reason. I guess I haven't spend much time looking for them over the last couple of years.
Here are a couple with my K5ii and various lenses:
Here is one with a Tamron 90mm I tried out when I first got my Pentax K5ii and took it on a trip to Texas. It was one of the first pics I took with that camera.
I ended up not liking the Tamron and got rid of it after that trip.
Couch's Spadefoot (Scaphiopus couchii)
Northern Leopard Frog from Utah with Sigma 18-250 macro. I'm not too happy with this shot. I've taken many better shots of this species. This was mostly just a quick voucher shot in harsh lighting.
Here is a toad I found in Mexico which I haven't identified yet taken with the Sigma 18-250.
I guess I'll have to take more frog pictures this year.