Topics

1

Lenses / 24-105 f/4L kit lens on 6D

« on: December 08, 2012, 03:21:29 AM »

Hi,
I plan to buy a 6D with 24-105 f/4L kit lens as an upgrade to a much lighter PnS with lens of similar FoV range that i currently use.
I realize the value this kit lens offers, both in price and the flexibility to determine what FL primes i (may) gravitate to over time.
However, i am anxious that it's weight may dampen my enthusiasm and hence contemplating a lighter 6D start point.

I have two questions
1. AF sensor
What perceivable impact does the f/4 kit lens impose, given that 6D's center x-point sensitivity is f/2.8?
Surely prior 5D bodies did not have a more forgiving f-stop requirement for AF?
The 24-70 f/2.8 L I or II is no lighter (and shorter and costlier)...but (on a 6D) is it noticeable more responsive for AF and in low light?

2. Your experience
If you moved away from this initial kit lens onto others, what constraints/findings led you to do this and to what alternatives?


Thanks
roka

2

Lenses / Lens of toddler stills and video

« on: May 21, 2012, 09:16:59 PM »

Requirement:
Capture moving toddler stills and video indoors in evening or low-light with a 5DMk3 and no external flash.

Context:
Please ignore: lens IQ, colour rnedition, bokeh.
Please consider: lens f-stop, AF speed, MF handling/feedback where applicable.

Questions:
1. Did you find the current EF 24-70L f/2.8 (set ~50mm) fast enough for this?
2. Did you find the need for a (say) EF 50 f/1.4 necessary?
3. Is increasing the ISO (now possible on 5DMk3) a workable option. Why not?
4. Is opting for a Zeiss ZE 50 f/1.4 and resorting to MF/practice a workable option (to the EF 50 f/1.4)?

I realize that handling this in person will sort me out, but i'm trying to guage what folks found/settled on over time and in hindsight. Specifically, if holding out for the EF 24-70L f/2.8 II will suffice or pursuing the ZE 50 f/1.4 still makes sense...assuming i get on with it.

Thanks for your response.