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Jerky Adjustments - Different between two Macs

Permanently deleted user
Hey all,

Wondering if anyone can shed any light to maybe a setting that may need to be tweaked.

Am about to pull the trigger on purchasing C1 (been on trial and long time and happy Aperture user) but have a few things that need to be sorted.

One is jerkiness of adjustments, funnily enough though, my more powerful iMac is way more jerkier than my old macbook pro.

On the iMac, cropping is slow and jerky, rotation is nearly impossible to use as it jumps like crazy, and sliders have a delay.

On the old Macbook Pro, things are much smoother and find that working out on site is actually quicker than the iMac.

Does anyone know if there maybe is a hardware or software toggle that may need to be set on the iMac to match up? The only other thing I can think of is that there is a difference in Preview size but would have assumed the more powerful iMac would accommodate for that. Or not...

iMac - 3.5GHz i7, 32gb RAM - Previews set to 2560px
2012 Macbook Pro - 2.9GHz i7, 16gb RAM - Previews set to 1280px

Cheers guys!

PS. C1 just need to add a "Do not import Duplicates" and adjust IPTC data on Import rather than a preset, and they are into a clear winner for Aperture users!
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Comments

6 comments

Date Votes
  • Ian Wilson
    Moderator
    Top Commenter
    In the General tab of preferences, are the two installations set to the same under Hardware Acceleration (Open CL)?

    Ian
    0
  • photo by FA
    If your iMac is 5K then there is the known problem with those iMacs. PO team says the GPU power is not good enoug. And also you should match the screen resolution to preview size, i.e. If your iMac is 5k, then the previews should be 5128.

    Cheers,

    Fatih
    0
  • Permanently deleted user
    [quote="Ian3" wrote:
    In the General tab of preferences, are the two installations set to the same under Hardware Acceleration (Open CL)?

    Ian


    Thanks for the reply Ian3. Thought it could be something like that. Check both systems and Open CL was toggled "never" for both options on both machines.

    Put it to AUTO for both now to see if it changes anything but so far haven't noticed much.

    Just find it odd the disparity between the two machines especially the lower specced one seems to run better.

    Cheers!
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  • Permanently deleted user
    [quote="fatihayoglu" wrote:
    If your iMac is 5K then there is the known problem with those iMacs. PO team says the GPU power is not good enoug. And also you should match the screen resolution to preview size, i.e. If your iMac is 5k, then the previews should be 5128.

    Cheers,

    Fatih


    Thanks Faith, unfortunately it's not a 5K iMac (or fortunately it seems), it's older than that. Yep, have both previews set to their native screen resolutions.
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  • George Barron
    [quote="fatihayoglu" wrote:
    If your iMac is 5K then there is the known problem with those iMacs. PO team says the GPU power is not good enoug. And also you should match the screen resolution to preview size, i.e. If your iMac is 5k, then the previews should be 5128.

    Cheers,

    Fatih


    I've noticed the problem on my 5K iMac but it is more with tone and color changes. I do not have my previews set on the max resolution. I will try that but it already takes about a second for the computer to 'draw' the previews when scrolling through them as it is. I'm afraid viewing previews at max res is going to make this problem worse.
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  • Ian Wilson
    Moderator
    Top Commenter
    Viewing previews at the right resolution should make it quicker, because C1 will have created a preview at the right resolution in the first place, instead of having to refer back to the original raw file and generate one on the fly.

    Ian
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