Now five years old, this compact, retro Micro Four Thirds camera is an unlikely favorite among Japan's top cameras

Olympus PEN E-P7
(Image credit: James Artaius)
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The Japanese market research firm BCN+R has released its monthly roundup of the top 10 best-selling interchangeable-lens cameras for September, and this month’s ranking features an unlikely Micro Four Thirds (MFT) shooter: the Olympus PEN E-P7.

The 20MP, lightweight, entry-level MFT model placed fifth for last month – albeit as part of a double-zoom lens kit including a 14-42mm EZ and 40-150mm lens – climbing three spots from eighth position in August.

While rankings from other market analyst firms, such as Kitamura and Yodobashi, pull data from specialty photo retailers, BCN+R tracks point-of-sale data from over 2,300 brick-and-mortar and online retailers across Japan, meaning more budget-model cameras, sold at places like Amazon, are typically included.

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BCN+R's top 10 best-selling camera models are typically determined from around 120 different camera bodies and respective lens bundle combinations, of which only an estimated 15% are MFT cameras.

The Olympus PEN E-P7 was the first Olympus model produced by OM System after it acquired the imaging division of Olympus (Image credit: James Artaius)

And in a world dominated by super-spec full-frame mirrorless and legacy DSLR cameras, the E-P7 has held the fort down for the MFT system in this ranking.

Since being released in 2021 (Europe/Japan only) – the first Olympus model produced by OM System after it acquired the imaging division of Olympus – the E-P7 has featured in BCN+R’s monthly top-10 roundup at least once in each of the last three years, as well as in its release year.

BCN+R top 10 best-selling interchangeable-lens cameras September 2026


The remainder of this month’s ranking was mostly a showdown between Sony and Canon, with a sprinkling of Fujifilm. The Sony ZV-E10 II took the top spot, followed by the Canon EOS R10 and two lens-combination variations of the EOS R50.

The latter half of the rankings was made up of the Sony A7 V, Fujifilm X-M5, Sony A6700 and A6400, as well as the Sony ZV-E10. Aside from the A7 V, all the other camera models came as part of a lens bundle.

Looking at the full list and how it's packed with rigs boasting full-frame and APS-C sensors, it's even more surprising to see an MFT model like the E-P7 make the top 10.

However, last month, OM System unveiled the new PEN, which carries a retro compact design but has weather-sealing and in-body stabilization. It doesn't start shipping in Japan until the end of October, but it will be interesting to see if the E-P7 is swapped out for the new PEN in future rankings.

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Here’s our pick of the best Micro Four Thirds cameras from Olympus, OM System, and Panasonic.

Alan Palazon
Staff Writer

I’m a writer, journalist and photographer who joined Digital Camera World in 2026. I started out in editorial in 2021 and my words have spanned sustainability, careers advice, travel and tourism, and photography – the latter two being my passions.

I first picked up a camera in my early twenties having had an interest in photography from a young age. Since then, I’ve worked on a freelance basis, mostly internationally in the travel and tourism sector. You’ll usually find me out on a hike shooting landscapes and adventure shots in my free time.

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