LensRentals has loaned me a Hasselblad XCD 135mm f/2.8 lens for testing. Today I’m posting images made with that lens and its matched teleconverter taken wide open at 1/2000 second with the mechanical shutter so you all can judge the bokeh. Out of focus specular highlight shows the artifact. Same here. In this case, the… [Read More]
Archives for June 24, 2024
Hasselblad XCD 135/2.8 with 1.7X TC on X2D: field curvature
LensRentals has loaned me a Hasselblad XCD 135mm f/2.8 lens for testing. Today I tested for focus curvature with the matched 1.7 X teleconverter (TC), using Roger Cicala’s (Ps>Filter>Stylize>Find Edges) test method. I found a flat surface with some texture, set the lens to wide open, and got this image: In order to show the… [Read More]
Hasselblad XCD 135/2.8 with 1.7X TC on X2D: OOF PSFs
LensRentals has loaned me a Hasselblad XCD 135mm f/2.8 lens for testing. Today I tested with the matched 1.7X teleconverter (TC), and looked at the out of focus (OOF) point spread functions (PSFs) using the mechanical shutter. I focused the lens to minimum focus distance (MFD), set the aperture wide open, and aimed it at… [Read More]