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PhotographyLife Review of Sony 100-400 Lens

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by SantaFeJoe on Sat Aug 18, 2018 8:42 am

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Here’s a link to a review of the Sony 100-400 f4.5-5.6 GM lens.

https://photographylife.com/reviews/sony-fe-100-400mm-f4-5-5-6-gm-oss

Joe

Learn the rules like a pro, so you can break them like an artist. -Pablo Picasso

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by Phil Shaw on Sat Aug 18, 2018 4:12 pm

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His main gripe is weather sealing. What he's talking about though would require an airtight seal (zooming would be difficult) - or some kind of sealed gas reservoir which serviced the volume expansion when the zoom extended. Of course there are a couple of ways to avoid the issues he's talking about - you could learn to use the gear in a variable environment where humidity and temperature vary, or if you can't be bothered with that, just get your self down to Diagonal Ally and get yourself a wand.

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by Jens Peermann on Sun Aug 19, 2018 7:04 pm

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Phil Shaw wrote:His main gripe is weather sealing. What he's talking about though would require an airtight seal (zooming would be difficult) - or some kind of sealed gas reservoir which serviced the volume expansion when the zoom extended. Of course there are a couple of ways to avoid the issues he's talking about - you could learn to use the gear in a variable environment where humidity and temperature vary, or if you can't be bothered with that, just get your self down to Diagonal Ally and get yourself a wand.

I have used mine in humid and cold conditions without moisture building up, condensing and becoming visible on the inside of the lens. Which makes me wonder if it is possible that moisture got trapped in that lens during assembly on a humid day and then became visible as the lens cooled down.

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by E.J. Peiker on Mon Aug 20, 2018 8:30 am