This is a lot of random Tamron adaptall items. I used the lens a few years ago and it performed surprisingly well on my Pentax film camera. I've never used the teleconverter (and I don't think it can mount with the 28mm, actually, so consider it a free gift!). There is a small amount of haze in both the lens and TC if you look at them through a very bright light but it is not noticeable in regular use.