Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
5D MK IV is out officially
#35
Quote:A serious question to you, JoJu, since I keep on wondering about it:

Is it doable to use the f1.8 APS-C zooms from Sigma on the 1.3x crop APS-H Sigma body without encountering problematic vignetting?
Let me answer (a part of) this question for you. I tested the 18-35 (not mine, 'fkorz) on my 1D Mark IV (the tinkerer that I am). At f/5.6 the vignetting is noticeable at the shortest focal length (no hard clipping though) but goes away the more you zoom in - it's nigh on invisible at 20mm. Wide open it is invisible at 28mm and 35mm and starts becoming progressively worse from 24mm on down. 18mm f/1.8 setting is unusable if you ask me, 20mm is marginal (both could probably be used for night shooting where the darkened corners would - with luck - blend into the darkness). Whether it depends (a lot) on the focusing distance, I don't know. It could be possible. I did get the degree of vignetting at 18mm f/5.6 to vary depending on focusing distance, but I didn't measure it scientifically. The (silly and half-hearted) test shots (originals with, well, full EXIF and whatnot) are here: https://cloud.mail.ru/public/WxXi/4zDPEou9S

 

Again: this was on Canon 1D4; whether the Sigma's coverage is any different is beyond my knowledge.

 

The 50-100 should be better in this regard, check out Dustin Abbott's review of that. I never even held it in my hands so I can't give you a first hand opinion. I would have loved to have that lens if I had been planning a total revamping of my kit.

  


Messages In This Thread
5D MK IV is out officially - by toni-a - 08-25-2016, 07:18 AM
5D MK IV is out officially - by Brightcolours - 08-25-2016, 07:32 AM
5D MK IV is out officially - by chrismiller - 08-25-2016, 11:32 AM
5D MK IV is out officially - by Brightcolours - 08-25-2016, 11:38 AM
5D MK IV is out officially - by Reinier - 08-25-2016, 11:47 AM
5D MK IV is out officially - by chrismiller - 08-25-2016, 11:49 AM
5D MK IV is out officially - by Brightcolours - 08-25-2016, 11:50 AM
5D MK IV is out officially - by Reinier - 08-25-2016, 04:44 PM
5D MK IV is out officially - by Brightcolours - 08-25-2016, 08:56 PM
5D MK IV is out officially - by Klaus - 08-25-2016, 11:38 PM
5D MK IV is out officially - by Klaus - 08-26-2016, 01:26 AM
5D MK IV is out officially - by Ayoh - 08-26-2016, 02:58 AM
5D MK IV is out officially - by davidmanze - 08-26-2016, 10:06 AM
5D MK IV is out officially - by Klaus - 08-26-2016, 11:32 AM
5D MK IV is out officially - by Rover - 08-26-2016, 11:46 AM
5D MK IV is out officially - by Klaus - 08-26-2016, 11:58 AM
5D MK IV is out officially - by davidmanze - 08-28-2016, 07:21 AM
5D MK IV is out officially - by popo - 08-28-2016, 07:49 AM
5D MK IV is out officially - by Brightcolours - 08-28-2016, 11:54 AM
5D MK IV is out officially - by Klaus - 08-28-2016, 01:47 PM
5D MK IV is out officially - by davidmanze - 08-28-2016, 02:45 PM
5D MK IV is out officially - by davidmanze - 08-28-2016, 08:08 PM
5D MK IV is out officially - by chrismiller - 08-30-2016, 11:40 AM
5D MK IV is out officially - by JJ_SO - 08-30-2016, 12:50 PM
5D MK IV is out officially - by chrismiller - 08-30-2016, 01:02 PM
5D MK IV is out officially - by JJ_SO - 08-30-2016, 01:14 PM
5D MK IV is out officially - by chrismiller - 08-31-2016, 08:20 AM
5D MK IV is out officially - by JJ_SO - 08-31-2016, 08:53 AM
5D MK IV is out officially - by chrismiller - 08-31-2016, 09:14 AM
5D MK IV is out officially - by JJ_SO - 08-31-2016, 09:30 AM
5D MK IV is out officially - by Brightcolours - 08-31-2016, 09:55 AM
5D MK IV is out officially - by JJ_SO - 08-31-2016, 10:18 AM
5D MK IV is out officially - by Brightcolours - 08-31-2016, 10:51 AM
5D MK IV is out officially - by JJ_SO - 08-31-2016, 11:09 AM
5D MK IV is out officially - by Rover - 08-31-2016, 04:01 PM
5D MK IV is out officially - by JJ_SO - 08-31-2016, 06:56 PM
5D MK IV is out officially - by Brightcolours - 09-02-2016, 06:05 AM
5D MK IV is out officially - by Klaus - 09-02-2016, 10:05 AM
5D MK IV is out officially - by Brightcolours - 09-02-2016, 10:23 AM
5D MK IV is out officially - by chrismiller - 09-02-2016, 10:37 AM
5D MK IV is out officially - by Brightcolours - 09-02-2016, 10:46 AM
5D MK IV is out officially - by chrismiller - 09-02-2016, 12:37 PM
5D MK IV is out officially - by Brightcolours - 09-04-2016, 08:38 AM

Forum Jump:


Users browsing this thread:
1 Guest(s)