I picked up this classic old preset telephoto lens to check out. It looks like a classic 4 elements in 3 groups "wundertute" type.
Mine is branded Cunor but it is most commonly found as a soligor. There has been an ongoing debate on mflenses.com as to who made this and other similar lenses. The soligors have a H6xxx serial, as does this cunor, coincidentally or not, H6's have been attributed to Kino. However I am going to place a flag and say this is a tokina, and the kino attribution to H6xxx serials is wrong. Even though I haven't been able to find any evidence of one branded as a tokina (or tokyo koki) online, for me the "faux" 47mm thread t-mount that this lens has is distinctively, and definitively, tokina.
I took along my
soligor (tamron) 350mm f5.6 for comparison, that's a lens I rate. Some test pics of the musselmens raft were inconclusive due to inconsistencies, suffice to say results were similar. And both lenses took similar pics of the jackdaws and gulls on Conwy quayside (cunor top, NX20, f11 same pp - contrast bumped and resized images sharpened):
crop:
crop:
Current state of play: the tamron made soligor is edging it, slightly better resolution IMO but most specifically because of it's much superior close focus: 3.5mm approx vs 6.6m measured mfd. However I did manage to reduce that to ~4m by unscrewing the stop screw on the focus sleeve on the Cunor.
Last edited by marcusBMG; 05-21-2018 at 03:04 PM.