The Holy Trinity of Calibration for Canon and specifically Nikon
Why is a Tamron lens calibration better than most other lens brands? One of the biggest issues we find when calibrating lenses with Nikon cameras is that Nikon cameras unlike Canon do not allow you add Autofocus micro-adjustments for both ends of zoom lenses. This is especially problematic when calibrating the ‘holy trinity’ of Nikon lenses:
- Nikon 14-24mm
- Nikon 24-70mm
- Nikon 70-200mm
This is because we have found that these three lenses tend to be the most inconsistent and thus need Autofocus Micro-Adjustments. The majority of the Nikon 24-70mm’s we see are especially prone to needing totally different values as in – at WIDE and + at TELE. Although here at Cameracal we have devised a work around which involves mapping the AF Fine Tune function to one of the programmable Function buttons (Fnct) (we also calibrate both ends of the zoom) this allows the user to quickly change the AFMA values for one end of the zoom to the other. This is not always convenient though, especially if zooming quickly, this is where the Tamron tap in console / dock comes in.
When Sigma brought in their ‘Global Vision’ line of lenses about five years ago, they also announced their Sigma Dock which allowed customers to customise their lenses. Fast forward a few years, Tamron also developed the same idea of using a dock for customers to ‘self-calibrate’ certain lenses (those in the G2 range). The main advantage of the Tamron dock over that used by Sigma (and by extension lenses) the fact the Autofocus Micro-Adjustments speak the same calibration language as both Canon and Nikon bodies. This means that more accurate AFMA result can be obtained by using Reikan’s FoCal, software. This calibration software product is considered the industry standard and typically yields far more accurate results. In comparison, Sigma Dock units are different to the internal camera units used from Nikon and Canon and there is no simple conversion factor.
When calibrating Sigma lenses using the Sigma Dock it is more time consuming with an element of trial and error to convert between camera units and Sigma Dock units The benefit of using the combination of Focal and the Tamron tap-in console is that it is possible to calibrate for multiple focal lengths and focus ranges and input these into the lens, thus the “Holy Grail Of Calibration” This is even more sophisticated than the Canon lens calibration system, which allow you to calibrate for both ends of the zoom. The Tamron Tap –In console also allows Nikon users to over the one value only limit.
So there we have it, next time you buy a new lens please do look at Tamron (especially if you are a Nikon user) as you may just get more consistent focus, and sharper results, because of it! You can find out more about Tamron calibration here. With regards the calibration of a Tamron 150-600mm G2 we would undertake the following:
- Check and upgrade firmware
- 6 individual calibrations to the following focal lengths – 150, 200, 300, 400, 500 and 600mm
For our Tamron Zoom Lens Calibration Service there would be up to 6 calibration points along the focal range depending on the focal range of the lens. So for the Tamron 150-600mm G2 there would be 6 calibration points and for the Tamron SP 70-200mm F/2.8 Di VC USD G2 there would be 4 calibration points (See below)
List of Tamron lenses compatible with the Tamron Tap- In Console are as follows:
- Tamron SP 15-30mm F2.8 Di USD G2
- Tamron 17-35mm F2.8- 4 Di OSD
- Tamron 70-210mm F4 Di VC USD
- Tamron 100-400mm F4-6.3 Di VC USD
- Tamron 18-400mm F3.5 – 6.3 Di II VC HLD
- Tamron SP 24-70mm F2.8 Di VC USD G2
- Tamron 10-24mm F3.5-4.5 Di II VC HLD
- Tamron SP 70-200mm F2.8 Di VC USD G2
- Tamron SP 150-600mm F5 – 6.3 Di VC USD G2
- Tamron SP 85mm F1.8 Di VC USD
- Tamron SP 90mm F2.8 Di Macro !:1 VC USD
- Tamron SP 35m F1.8 Di VC USD
- Tamron SP 45mm F1.8 Di VC USD
Priced at £129-00 fro Zoom lenses and £99 for prime lenses
You can find out more about Tamron calibration here.