# xf (blogs) — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover xf. Page: Feed: --- ## [Sony FE 50-150mm f/2 GM Review](https://opticallimits.com/sony/sony-fe-full-format/sony-fe-50-150mm-f-2-gm-review/) _2026-08-17 · Klaus · OpticalLimits_ Decades ago, fast zoom lenses had a maximum aperture of f/4. When AF SLRs emerged, the speed increased to f/2.8, resulting in a set of ultra-wide, standard, and medium telezoom lenses affectionately known as the holy trinity. It appears that the manufacturers are now readying the next phase centered around f/2 lenses, thus almost matching \[...\] The post Sony FE 50-150mm f/2 GM Review appeared… ## [Sirui Aurora 85mm f/1.4 (Sony E-mount) Review](https://opticallimits.com/sony/sony-fe-full-format/sirui-aurora-85mm-f-1-4-sony-e-mount-review/) _2026-08-11 · Klaus · OpticalLimits_ Sirui may not be a household name among photographers yet, but the company has been a player with the cinema lenses for more than a decade. They are well-known for the anamorphic cine lenses. However, they also released some more photography-centric AF lenses with their Aurora (full-format) and Sniper (APS-C) lineups. One of them is \[...\] The post Sirui Aurora 85mm f/1.4 (Sony E-mount) Review… ## [Sony FE 100mm f/2.8 macro GM OSS Review](https://opticallimits.com/sony/sony-fe-full-format/sony-fe-100mm-f-2-8-macro-gm-oss-review/) _2026-08-07 · Klaus · OpticalLimits_ The FE 100mm f/2.8 macro GM OSS is Sony’s 2nd generation macro lens for the E-mount system. It supersedes the FE 90mm f/2.8 macro G OSS, which has been with us since 2015. Sony is convinced that they created something special here because they lifted the designation from G to GM class for the new \[...\] The post Sony FE 100mm f/2.8 macro GM OSS Review appeared first on OpticalLimits . ## [Nikkor AF-S 105mm f/1.4 E ED (Nikon F) Review](https://opticallimits.com/nikon/nikon-f/nikkor-af-s-105mm-f-1-4-e-ed-nikon-f-review/) _2026-08-06 · Klaus · OpticalLimits_ Introduction After all these fancy new lenses for mirrorless cameras, let’s do a little excursion to a blast of the past – the not-yet-quite-vintage Nikkor AF-S 105mm f/1.4 E ED in Nikon F mount, released back in 2016. It’ll be part of a miniseries of reviews where we’ll cover some of the more iconic Nikon \[...\] The post Nikkor AF-S 105mm f/1.4 E ED (Nikon F) Review appeared first on OpticalLimits… ## [Viltrox AF 9mm f/2.8 Air XF (Silver) Review](https://opticallimits.com/fujifilm/viltrox-af-9mm-f-2-8-air-xf-silver-review/) _2026-08-05 · Klaus · OpticalLimits_ Introduction We tested the Viltrox AF 9mm f/2.8 Air (black version) in Sony E-mount a while ago already. For obvious reasons, we’ll reuse most of the findings of this test here again. The MTFs, vignetting, and CAs tests were run again, though. The 9mm f/2.8 Air XF is an APS-C format lens equivalent to about \[...\] The post Viltrox AF 9mm f/2.8 Air XF (Silver) Review appeared first on OpticalLimits… ## [Viltrox AF 15mm f/1.7 Air XF (Silver) Review](https://opticallimits.com/fujifilm/viltrox-af-15mm-f-1-7-air-xf-silver-review/) _2026-08-05 · Klaus · OpticalLimits_ Introduction This is a retest of the Viltrox AF 15mm f/1.7 Air XF – this time with a silver finish, which matches with the silver-top Fujifilm cameras a la X-T5 and the like. We’ll reuse most of the original review, but the MTF and CA tests were executed again with this sample. It’s an APS-C \[...\] The post Viltrox AF 15mm f/1.7 Air XF (Silver) Review appeared first on OpticalLimits . ## [Viltrox AF 9mm f/2.8 Air XF, AF 15mm f/1.8 Air XF, AF 25mm f/1.7 Air XF in silver for Fujifilm X announced](https://opticallimits.com/news/viltrox-af-9mm-f-2-8-air-xf-af-15mm-f-1-8-air-xf-af-25mm-f-1-7-air-xf-in-silver-for-fujifilm-x-announced/) _2026-08-05 · Klaus · OpticalLimits_ Ref.: https://viltrox.com/collections/x-mount?ref=rwuxbpue These lenses have a silver finish to match with Fujifilm’s classic silver-top X-mount cameras. They join the AF 35mm f/1.7 AIR XF and AF 56mm f/1.7 AIR XF which have been available with a silver finish for some time. AF 15mm f/1.7 Air XFPrice: 239 USD / 269 EUR / 229 GBP Optical \[...\] The post Viltrox AF 9mm f/2.8 Air XF, AF 15mm f/1.8 Air… ## [Sony FE 100-400mm f/5.6-8 OSS announced](https://opticallimits.com/news/sony-fe-100-400mm-f-5-6-8-oss-announced/) _2026-08-04 · Klaus · OpticalLimits_ PRESS RELEASE SAN DIEGO, Aug. 4, 2026 /PRNewswire/ — Sony Electronics introduces SEL100400 – FE 100-400mm F5.6-8 OSS, a super-telephoto zoom lens for 35mm full-frame Alpha™ E-mount cameras. Despite its super-telephoto reach of up to 400mm, the lens stays compact and lightweight, weighing just 654g (approx.). Its latest optical design incorporates two ED (Extra-low Dispersion) glass elements \[...\]… ## [Canon RF 14mm f/1.4 L VCM Review](https://opticallimits.com/canon/canon-rf/canon-rf-14mm-f-1-4-l-vcm-review/) _2026-08-04 · Klaus · OpticalLimits_ Over the last few years, Canon has created a set of hybrid prime lenses that prioritize video features alongside still photography. These lenses share a nearly identical form factor, minimal focus breathing, a fast f/1.4 max aperture, and they use a magnetic VCM (Voice-Coil-Motor) with Nano USM to drive focus groups independently for autofocus. As \[...\] The post Canon RF 14mm f/1.4 L VCM Review… ## [Laowa Aksen 1-5X & 5-10X Ultra Macro APO announced](https://opticallimits.com/news/laowa-aksen-1-5x-5-10x-ultra-macro-apo-announced/) _2026-08-01 · Klaus · OpticalLimits_ Ref.: https://www.venuslens.net/product/laowa-aksen-ultra-macro-apo/ Laowa Axon 45mm f/2.8 1-5X Ultra Macro APO Specifications Optical construction 13 elements in 9 groups (3x ED, 4x HR) Number of aperture blades 11 min. focus distance Max. Magnification: 1X – 5XMin. Working Distance: 41.35mm Dimensions φ 70.2 x 121mm Weight 599g Filter size – Hood – Other features Aperture ringFully manual \[...\]… ## [Recipe PDFs Ready Fast (Sponsored)](https://crawlproof.com/a/krOhXbB5MSfx) _2026-08-01 · **Sponsored**_ Turn online or personal recipes into clean, printable PDFs in seconds. ## [Photo 0197](https://photos.dariuszwinkler.com/photo/0197/) _2026-05-22 · Dariusz Winkler Photography_ Milford Sound, New Zealand | February 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 19mm (28mm) | ƒ/6.4 | 1/320s | ISO 640 ## [Photo 0196](https://photos.dariuszwinkler.com/photo/0196/) _2026-05-18 · Dariusz Winkler Photography_ Wānaka, New Zealand | March 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 26mm (38mm) | ƒ/7.1 | 15s | ISO 4000 ## [Photo 0195](https://photos.dariuszwinkler.com/photo/0195/) _2026-04-30 · Dariusz Winkler Photography_ Yamagata, Japan | April 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 19mm (28mm) | ƒ/8 | 1/320s | ISO 160 ## [Photo 0194](https://photos.dariuszwinkler.com/photo/0194/) _2026-04-19 · Dariusz Winkler Photography_ Queenstown, New Zealand | February 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 25mm (37mm) | ƒ/10 | 1/1000s | ISO 3200 ## [Photo 0193](https://photos.dariuszwinkler.com/photo/0193/) _2026-04-15 · Dariusz Winkler Photography_ Seoul, South Korea | March 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 47mm (70mm) | ƒ/13 | 1/320s | ISO 640 ## [Photo 0192](https://photos.dariuszwinkler.com/photo/0192/) _2026-04-13 · Dariusz Winkler Photography_ Utsunomiya, Japan | April 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 39mm (58mm) | ƒ/7.1 | 1/8s | ISO 160 The Wakayama bamboo farm in Utsunomiya is a hidden gem. During the week, on a beautiful spring day, I had the forest almost to myself. This was a great chance to try out ICM with landscape for the first time. After a few fully abstract photos, I discovered this painting-like… ## [Photo 0191](https://photos.dariuszwinkler.com/photo/0191/) _2026-04-07 · Dariusz Winkler Photography_ Rotorua, New Zealand | February 2026 Fujifilm X-T5 Fujifilm XF 70–300mm ƒ/4-5.6 R LM OIS WR 300mm (450mm) | ƒ/5.6 | 1/320s | ISO 125 ## [Photo 0190](https://photos.dariuszwinkler.com/photo/0190/) _2026-04-04 · Dariusz Winkler Photography_ Doha, Qatar | February 2026 Fujifilm X-T5 Fujifilm XF 56mm ƒ/1.2 R 56mm (84mm) | ƒ/1.2 | 1/180s | ISO 3200 ## [Photo 0189](https://photos.dariuszwinkler.com/photo/0189/) _2026-03-26 · Dariusz Winkler Photography_ Sydney, Australia | March 2026 Fujifilm X-T5 Fujifilm XF 56mm ƒ/1.2 R 56mm (84mm) | ƒ/1.2 | 1/200s | ISO 800 ## [Photo 0188](https://photos.dariuszwinkler.com/photo/0188/) _2026-03-20 · Dariusz Winkler Photography_ Doha, Qatar | February 2026 Fujifilm X-T5 Fujifilm XF 56mm ƒ/1.2 R 56mm (84mm) | ƒ/1.2 | 1/300s | ISO 3200 ## [AI QA That Opens Fix PRs (Sponsored)](https://crawlproof.com/a/Yqw0csN6jvxc) _2026-03-20 · **Sponsored**_ Runs browser QA, files issues with repro evidence, and opens fix PRs. ## [Photo 0187](https://photos.dariuszwinkler.com/photo/0187/) _2026-03-16 · Dariusz Winkler Photography_ Doha, Qatar | February 2026 Fujifilm X-T5 Fujifilm XF 16–55 ƒ/2.8 R LM WR II 55mm (83mm) | ƒ/9 | 1/480s | ISO 125 My abstract take on the Museum of Islamic Art building in Doha, Qatar. ## [Photo 0186](https://photos.dariuszwinkler.com/photo/0186/) _2026-03-12 · Dariusz Winkler Photography_ Doha, Qatar | January 2026 Fujifilm X-T5 Fujifilm XF 70-300mm ƒ/4-5.6 R LM OIS WR + 1.4x TC 215mm (322mm) | ƒ/7.1 | 1/180s | ISO 3200