Confusion at the Border: Photography Versus Astronomy

One of the biggest confusions that you might notice as you venture into astrophotography is that photographers and astronomers measure their equipment differently. Photographers tend to refer to their lenses in terms of their focal length, while astronomers refer to their telescopes by the diameter of their opening. Thus, a 75mm f/6 telescope has a focal length of 450mm. Meanwhile, a 75mm camera lens at f/6 has an aperture of 12.5mm. If a photographer is told that someone is shooting a 155mm lens hand-held, it would not raise an eyebrow, but an astronomer told the same thing would be incredulous! I can only barely lift my 155mm telescope onto its mount!

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Should You Use a 35mm, 50mm, or 85mm Lens?

35mm, 50mm, and 85mm lenses are some of the most popular out there, offering relatively neutral focal lengths quite suitable for portraiture. However, each one renders your subject quite differently and is appropriate for different situations. This great video compares the three focal lengths and will show you the sort of images you can get from each to help you choose the right for your work.

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2x Macro at Half the Price: Fstoppers Reviews Laowa’s 100mm f/2.8 Macro Lens

If you’re looking to get into macro photography, the first party lens options can seem too expensive for a lens with a more niche use, particularly on the latest Z and R mounts. Laowa, however, has a very promising 100mm lens that even exceeds those other 100mm options in one notable way. hould it be the lens you choose when shooting up close?

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