[Brightcolours]

dear All,

I'm going to made a "little" upgrade to my photo equipment... passing from the 400d to the 6d but... but before I need some help about lenses...

I already have: 
- 8-16 Sigma (What will be the result on a FF? it's important because I love this piece of glass)

Usually you can apply the crop factor to determine what will be the usable range on FF, with these UWA APS-C lenses. So in case of this Sigma, that would mean 8 x 1.5 (it is fine on 1.5x crop factor APS-C) = 12mm to 16mm on FF. You sure can use it at 16mm anyway, so even if my rule of thumb would not go for this particular design, you can still use it as a 16mm UWA "prime".

- 50 f1,8

This lens will work better on the 6D even, so no problems there. Nice cheap normal lens to have on APS-C.

- 24-70 sigma macro

This never was a super lens, but will perform adequate anyway on the 6D. So, untill you run into performance limitations, you will not have to get a different standard zoom for FF.

- 75-300 canon (very old style, so old that I don't remember the model  :blink

All the 75-300mm Canon lenses were ok-ish to rather disappointing (image quality wise, especially at 300mm). So this lens would be the 1st on the list to be replaced, in my opinion. On a budget, look at the Canon EF 70-300mm f4-5.6 IS USM or the Tamron 70-300mm f4-5.6 USD VC. Both have rather good optics over the entire range, good IS. The Tamron will perform a tad quicker/better when AF tracking in AI-Servo mode, and has no rotating front element, handy for when you want to use a pol. filter. Also, the Tamron has the sun hood (great impact protection) included, with the Canon you have to buy it separately, adding a bit to the price.

I don't know which lenses I'm going to use on FF without problems!!

 

Can someone helping me :wacko:  :wacko:  :wacko: ? 

thank you 
Lorenzo