I can assure my fingers are decidedly average in size at most, if not on the small side in length and rather fat. Gecko fingers!
Thank you for posting the image. I note that the UF-RJ45-10G SFP+ interface, with an 8P8C female socket, looks just like an SFP equivalent. (Though I don't have one here, to create a similar photograph.)
Looking at an Adva SFP/GBE/1310S/SM/LC optic (the most convenient optic for me to measure), it is (approx) 13mm wide, 8mm high by 47mm deep. (They are the dimensions of the optic that fit into the host cage.) Positioning the optic on a human left-hand, in an attempt to emulate the subject of your photograph, I can measure a further 39mm from the end of the optic to the finger-tip.
So it appears, to me, that an SFP and an SFP+ interface/optic are virtually the same size.
None of those: 1270/1330 nm. LC connectors.
Noted, with thanks.