This indespensible Full Frame prime lens is an extremely fast, bright 1.4 f-stop, with beautiful natural background blur, if desired, and high-end glass. It’s a full frame format lens but can be used on APS-C Nikons as well. I was hoping acquiring my first DSLR and Nikon would rekindle my photography interest from way back but I just never got around to taking it and the lens out. I purchased if off the original owner and was very well looked after and is like new. Pristine condition.