The SIGMA 200-500mm f/2.8 EX DG was a very niche lens that SIGMA released in 2007. I had a chance to hold one back when Lensrentals.com had a copy of the behemoth. It’s big and heavy, but who was it made for? I have been told that law enforcement and military were the main customers

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The Kübler-Ross model applied to cameras:
Denial of equivalency
Anger at Canon or other companies
Bargaining with buying/selling photography supplies/equipment/work
Depression about spending money or something not turning out the way we expected
Acceptance

I am looking for a 35 mm lens for astrophotography. I've been looking at RF 35/1.8, but the sticking point is coma/astigmatism which is severe wide-open.
But ... does this problem go away when the lens is stopped down? For example, here is an aperture sweep of my RF 24/1.8 which has bad astigmatism wide open but produces nice results from f/3.5 and up.



I shoot with a star tracker so f/4 is not a big deal.
I know that there are other lenses out there that have well-controlled astigmatism wide open: EF 35/1.4 L mk2, Tamron 35/1.4 di USD, Sigma 28/1.4 Art. But these are big and heavy lenses, and I'd love to have a small, nimble little lens, particularly for other uses. RF 35/1.8 has a lot going for it: nice bokeh, close focusing, sharp, lightweight, punchy colors, small, great price. There is just the astigmatism problem. Does RF 35/1.8's astigmatism problem go away when stopped down? Is there an aperture sweep out there that anyone can point me to? Usually I look at Lenstip for that, but they don't have a complete review of this lens.
One more thing. Does RF 35/1.8 have field curvature? Field curvature and astro don't go together very well. I've been burned by that before with other lenses.
Thanks.

As sensors get more complicated, faster, and also more stacked there is more heat generated from the sensor itself. As fabrication design rules get smaller, for normal chips that reduces the size of the chip which reduces the resistance to electric current, and usually heat – which is why as design rules get smaller, chips

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To reach the full limit of Apple’s new impressive Pro camera system, SmallRig has created a video cage ecosystem that helps you master your mobile filmmaking. Mobile Video Kit for iPhone 15 Pro Max Co-Design Edition was co-designed with Brandon Li, a world-renowned filmmaker known for his minimalist travel cinematography style. This new Mobile Video

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In this Canon Patent Application (2023-153460) Canon discusses both the need and the method of changing focusing during shift or tilt operations. As with the other patent applications in this series, I should first mention that the tilting and shifting discussed seem to be internal and done by moving optical elements. That question has been

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One of the largest and longest running photography forum communities is shutting down by the end of 2023. Photography-on-the-net has decided to shut down by the end of 2023. The industry has definitely changed, and every time we see one of these long-running web sites ceasing operations it’s sad, but outside factors have definitely made

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10 years ago Canon announced they had purchased Austin Texas’s Molecular Imprints Inc, and this was a purchase that I who is always looking at the tech side of Canon was excited about. I was very interested in seeing if Canon could make something with this technology. It had an insane amount of promise at

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We have reported recently that an ultra-wide RF-S zoom lens was coming this year, and it looks like Canon will be bringing the RF-S 10-18mm f/4.5-6.3 IS STM to fill that need in the RF-S lineup. You can see that this lens has a tiny 48mm filter thread. Unfortunately we don’t have any other specifications

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The long rumored Canon EOS R1 is finally getting closer to be reality. It’s not a question of if the EOS R1 comes, as Canon themselves have stated numerous times that the EOS R3 is “not our flagship”. It’s just a question of when. We have been told by two sources to expect “some kind”

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We were hoping that Canon was past issues with initial supply of new lenses and cameras, but that doesn’t appear to be the case. Canon has now added the RF 10-20mm f/4L IS STM to the list. A lot of lenses have dropped off the list over the last few months, but it’s not like

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Canon announced the RF 10-20mm f/4L IS STM this week. While we knew such a lens was coming, the announcement time was a surprise, which does add a bit of fun to new gear. We don’t believe Canon is done with new lenses in 2023. We have been told that Canon will likely announce at

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This patent application (2023-149130)shows some interesting and fairly simplistic optics for 70, 75, and 85mm primes. The 85mm primes are unlikely since we already have the Canon RF 85mm F2.0 IS STM. It should be noted that the element designs in this patent application are far simpler than the 85mm F2.0. Most likely because of

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Yesterday when the news broke about the Canon RF 10-20mm, I immediately did our comparison of the Canon RF 10-20mm and the Canon EF 11-24mm. Let’s just say the preliminary look of this lens makes it look like a home run for Canon if you shoot super-ultra-wide frequently. As I mentioned in that article, if

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One of the issues with a totally silent camera is the fact that we have very little in the way of feedback when an operation occurs. If you don’t want that incessant beep and are using an electronic shutter, it’s easy to miss that an image has been taken, or that another operation has occurred.

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Nikon has announced the latest PF lens. Weighs the same as the 500mm f/5.6 PF at 1.47 kg without hood. Its minimum focus distance is longer at 4m. 95mm thread. It will be a winner for Nikon among birders and wild life photographers. Not cheap at £5000/$4800. Pity it doesn’t have the 3m mfd of the 500mm PF.

Nikon releases the NIKKOR Z 600mm f/6.3 VR S, a super-telephoto prime lens compatible with the Nikon Z mount system | News | Nikon About Us

www.nikon.com

As we broke the story earlier, Canon has officially announced the Canon RF 10-20mm F4L IS STM. You can pre-order this bad boy from B&H for $2399. If it’s anything like Canon’s recent releases, this lens will quickly be backordered. Canon’s press announcement. Going Wide: Canon introduces the RF 10-20mm F4 L IS STM to

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MELVILLE, NY, October 11, 2023 – Today, Canon U.S.A., Inc., a leader in digital imaging solutions, announced the launch of the RF10-20MM F4 L IS STM lens, a full-frame ultra wide- angle lens that can help the work of a professional photographer or serious enthusiast stand out from the crowd. Opening the door to supreme full-frame

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Well, if the report from The Camera Insider is true, we can knock one lens off the recent roadmap update. Canon will announce the Canon RF 10-20mm f/4L USM tonight at midnight EDT. Pricing is rumoured to be somewhere around $2300 USD.

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After trying some of the RF lenses I have noticed that the contrast is WAY way to high for my taste. In this case the RF 50/1.8. Blacks are almost completely crushed and highlights are too hot. I understand that the purpose is to have ready JPEGs but it really makes them look harsh and uninspiring.

Now, of course the solution is to edit them to taste but I believe a lot of details can be rendered better with an old school lens. I am not talking about vintage lenses so I simply wonder if there are any modern-ish Canon AF lenses with soft contrast without looking milky? Preferably in the 24-120 range (zooms are OK too)

Thanks!

In the better late than never category we have a new review from our friends at photographyblog.com on the Canon RF R100. Essentially the TL;DR is that Canon made this camera solely to compete on price. Nothing else. As with the Canon EF camera bodies in this general price range, we see cost cutting throughout

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The Canon EOS R5 Mark II is expected to be announced in early 2024, the logical time would be ahead of CP+ in February. There have been multiple reports that prototypes of the camera are in the hands of Canon’s loyal test photographers, but the final feature set for the camera is not yet known.

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The next announcements from Canon will be a slew of lenses. We had reports of an announcement coming in late September, and that has obviously passed without anything being announced. We are very confident that a lot of new lenses will be announced between now and March 2024, but we’re still waiting for any solid

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I have a Canon R5 and an iPad Air with USB-C, and I want to use the iPad to check and select images. Or by Wi-Fi/Bluetooth (Which I think is a hassle) or USB-C cable.

Now, I have my clients look at the back of the iPad to check if their photo is good. Select the correct one. I do not have to cull the image, but I want to rate the image with a star so that when I import them into Photo Mechanic and later into Lightroom, the rating is maintained.

Does anyone have it working? Which app do I use? What are the drawbacks? And the experiences?

The SIGMA 70-200mm F2.8 DG DN OS | Sports is a large-aperture zoom lens for full-frame mirrorless cameras. In addition to the expressive imaging capabilities owing to the latest optical design, the lens offers a high level of performance and features that meet the expectations of professionals in both still and video, including high-speed autofocus

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