I was wondering if some people are getting bad aberrations out of their Rokinon SP 14mm F/2.4 (the "premium" line, not the cheaper 14mm F/2.8).
I bought one directly from the manufacturer about a month ago and I've been chatting with their tech support about what I consider is unacceptable performance since then.
They just won't recognize that my lens is underperforming (neither that it is defective) even after I sent the following comparison with my Canon 18-55mm kit lens that a got with my T4i/650D a while back. They even told me that the "lens is not made specifically for astrophotography. Therefore some aberrations when shooting astrophotography should be expected. This is not a defect on this lens and a replacement will have the same results."
To be fair, I get the point that some aberrations should be expected, I mean, I wasn't expecting a triplet refractor performance and I told them that but when you go to their website, they show a lot of astro shots on that specific lens model page with much better star shapes so saying it not specifically made for ap with such marketing material is misleading to say the least...
It is also very disappointing since every review I looked online seemed to show great performance (especially for the price) with that lens. What's even more frustrating is they won't issue an RMA since I'm in Canada and they won't refund the return shipping cost/customs.
Anyway, I did not intend this post to be rant but I was curious to see if this kind of performance is common with that model among those who use it for wide angle astrophotography. So I can decide if I take a chance and ask for a replacement OR otherwise a refund...
Let me know what you think....
LensCompareDay (edit: link corrected)
Edited by Seb@sTro, 11 August 2022 - 05:46 PM.