Short shutter speed, occasional blurred faces?

Good evening. I recently purchased the Sigma 18-250mm f3.5-6.3 and noticed a phenomenon that I can't quite explain. The shutter speed is usually set to 1/200s and the aperture to f/4. The ISO setting is between 100 and 800, depending on the lighting conditions. Normally, the shutter speed should be perfectly sufficient to ensure that…

How do I optimize my photo project?

The feedback to my suggestion: "…apart from a longer shutter speed, I unfortunately don't see much of a challenge here. You need to delve deeper into the subject matter…." How can I remodel my current project proposal to meet the requirements? _________________________________ Project description: The goal of this photography project is to create a series…

Rollei remote shutter release not triggering on the D7000?

What can I do? I've done a lot of research but haven't come up with any results. Have the remote shutter release: https://www.amazon.de/Rollei-Kabelfernausl%C3%B6ser-Nikon-Serienbildfunktion-Zeit-Intervall/dp/B01KVE77A0/ref=asc_df_B01KVE77A0/?t ag=googshopde-21&linkCode=df0&hvadid=308464931169&hvpos=&hvnetw=g&hvrand=3990948769574412246&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcm dl=&hvlocint=&hvlocphy=9042349&hvtargid=pla-568924631032&psc=1&th=1&psc=1&tag=&ref=&adgrpid=60872846825&hvpone=&hvptwo=&hvadid=308 464931169&hvpos=&hvnetw=g&hvrand=3990948769574412246&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9042349&hvtargid=pla-568924631032 I've already put in new batteries and set the camera to remote shutter release, but in manual mode the camera only focuses and doesn't trigger. I also have a…