Tamron 35-150 mm f/2.8-4 Di VC OSD
7. Coma, astigmatism and bokeh
| Center, 35 mm, f/2.8 | Corner APS-C, 35 mm, f/2.8 | Corner FF, 35 mm, f/2.8 |
|
|
|
| Center, 90 mm, f/3.5 | Corner APS-C, 90 mm, f/3.5 | Corner FF, 90 mm, f/3.5 |
|
|
|
| Center, 150 mm, f/4.0 | Corner APS-C, 150 mm, f/4.0 | Corner FF, 150 mm, f/4.0 |
|
|
|
When it comes to astigmatism we also don't have any reasons to complain. The average difference between horizontal and vertical MTF50 function values amounted to just 6.2% which is a moderate result. What's interesting, astigmatism shows a downward trend with the increase of the focal length because at 35 mm it reaches 10% and at the maximum focal length it drops to 3%.
Please Support UsIf you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio; only that way we will be able to continue providing you interesting content for free. |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
On the other hand we expected a noticeably better performance concerning out-of-focus areas. A distinct, double rim on the edge of the circle is really annoying. What's more, its centre isn't perfectly smooth, an effect most likely connected with a high number of aspherical elements in the construction of the lens. Additionally you can notice an influence of mechanical vignetting which decreases only on stopping down the aperture by 2 EV.
| Center, 150 mm, f/4.0 | Corner APS-C, 150 mm, f/4.0 | Corner FF, 150 mm, f/4.0 |
|
|
|
| Center, 150 mm, f/5.6 | Corner APS-C, 150 mm, f/5.6 | Corner FF, 150 mm, f/5.6 |
|
|
|
Center, 150 mm, f/8.0 | Corner APS-C, 150 mm, f/8.0 | Corner FF, 150 mm, f/8.0 |
|
|
|
