Hello, everyone

I recently bought a Linhof Technika 5x7. Among other things, a Tele-Xenar 5.5 / 500mm was included.
An orchid served as a model for the first experiments. The image enlargement was approx. 1: 2. One photo with aperture 5.5 @ 1/4 sec., The second with aperture 11 @ 1 sec. Focusing was a bit difficult ....
In the picture taken with f / 5.5 a "glow" is visible at the edges of the orchid leaves (in the blurred areas?). I would be interested in how this effect shows up in portraits. Have any of you experience with this lens in portraits? And what is not clear to me: With the compound shutter, no cable release is used, but there is a nipple for a compressed air release. Are there standard products for this? Or just use a hose with a syringe?

Thank you for your tips

NormaN

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