What's the lens you regret getting rid of?

When I went to Full Frame, I got rid of my APS-C and 18-135mm STM. I am now only using a few primes, but do miss the 18-135. The quality on that thing was pretty good for what it is.

Sigma 50mm Art series.

None. I sold 3 crappy lenses with my crappy crop body; 18-55, 55-250, 50 1.8 (yuck!!)

Canon 50mm f/1.2 L

Rokinon 24mm f/1.4. I wanted a more general purpose autofocus lens.

I sold some Pentax SMC Takumars when I went to Nikon. Those SMC Taks were such nice, compact lenses… Now with the Sony A7, I’m starting to buy back some of the best... I’m amazed at how good and compact that SMC Tak 135/2.5 really was.

I've owned and sold a lot of lenses, but regret selling the following:

- Sigma 17-50 for the Canon 17-55
- Canon 24-105L
- Canon 85 1.8
- Canon 70-200 4L

Have just ordered another 85 1.8, since I think it will be a nice combo with the Sigma 18-35 1.8 that I currently own.

Every time I think of selling a lens I put it on and take some photos .
last time I had this thought was with a Ef 70-210mm
To sharp of a lens to let it go for pennies

I definitely regret getting rid of my 85 f1.8. I didn't use it for the longest time so I figured it was safe to ditch. Since then I've had a few occasions where it would have been nice for low light basketball/volleyball.

Zeiss Makro Planar 2/100mm ZE...want that back.

I really miss my EF-S 10-22, but sadly it served no purpose once I got my 5D3.

I wish I had my 600 f4 back.

I sold a Canon 17-55 ef-s lens when I went all full frame. Now that I have the 7D II, I wish I hadn't done that.

85mm 1.2 v2, twice. Not my smartest move.

Sigma 18-35 f1.8

Wish I still had that,
Probably end up buying again