Delta Optical Titanium 2.5-15x56 HD SF

i have two delta titanium hd 2.5x15 x56 sf scopes AND one has a different eye piece to the other! can any one tell me why?

Purchased this scope after reading reviews, I own Several NF SHV scopes & NXS scopes, this scope has brilliant lens , the clarity, resolution, definition , colour contrast are excellent. My scope the field of view is slightly smaller than the shv & the eye box is a tad tight. The turrets are great, positive click adjustment, Easley pull up lock down, capped great for hunting, illumination is great, no colour bleed , the parralex adjustment has great resistance, same for the power adjustment ring. All in all said for the money spent it is a excellent scope. It would be hard to find a better scope than this in the price range. I highly recommend it .

I have tested it and its great,i also have bauer 3.5-12x56 and this is another class for bauer
Its a scope that gives more than it costs
Only thing i like less is reticle i could be a litlle tinner

I have tested both Delta Titanium HD also 2.5-15x56 Zeiss Victory HT 3-12x56
In the end I bought Delta Titanium 2,5-15x56 HD for its fine dark features