There are some drawbacks though. Uncannily enough, they’re the same as with the Canon EF 28mm ƒ/1.8 USM: slight vignette with a hard vignette at infinity focus. At ƒ/8, it isn’t very prevalent as you’ll see in the samples, easily corrected with a 5:4 crop that retains 48MP. However, as the aperture gets smaller, the vignette hardens, as you can see at ƒ/32, but still works at a 5:4 crop ratio. The lens works fine with a 3:2 crop at full sensor width and in 35mm crop mode, so you can choose what works best for you. Weirdly, the lens changes focus as you move in and out of playback mode on the GFX...
Widening out to an approximate 22mm in 35mm format terms, the Canon EF 28mm ƒ/1.8 USM does show some hard vignetting that is never fully resolved. It’s very, very slight and occurs at ƒ/4 and smaller at infinity focus. Vignetting is prevalent fully open, mostly disappearing by ƒ/4 at close focus distances. If the vignetting is a problem for you, the EF 28mm ƒ/2.8 IS might be a better bet but isn’t on Canon’s list of preferred lenses for the 5DSR, so it may or may not resolve well on a 50MP sensor.
After spending a few weeks with the Sigma 50mm ƒ/1.4 Art, I've come to realize maybe Sigma lenses aren't the solution for me. At least the 50mm has a very short focus throw, making manual focus a tedious process, even with focus aids like focus peaking and focus zoom. Autofocus is just too unreliable and slow to depend on for all occasions, making manual focus capability a priority.
This is the first in a series of posts on individual lenses adapted to the Fujifilm GFX 50S with the TechArt Pro EF-GFX adapter. Fujifilm GFX 50S, firmware v3.30 (latest) TechArt Pro EF-GFX, firmware v1.01 (latest) Sigma 50mm ƒ/1.4 Art, firmware v2.02 (latest) Summary: Full compatibility: Autofocus, EXIF OK. This lens shows a correctable vignette throughout the aperture range but is heavily affected by focus breathing. As the aperture shrinks, focus toward infinity causes the vignette to become harder and more pronounced. Despite this, it is easily cropped and corrected while maintaining 45mp or more.
You're familiar with how they all begin: "this video is sponsored by Squarespace." Ok, well, after that, they then feed you the next line, almost all of it verbatim, "I am not sponsored by (insert brand here). They have not paid me to do this review or told me what to say about it. This review is entirely my own and they don't know I'm making this video. I was/was not provided a sample for the purposes of this review. I am not biased in any way so you can trust what I'm about to say about this product." What they don't mention, obviously, is if they had to return that "review unit." But if you pay close attention, you may catch them using the product in later videos, especially if they were especially laudatory in their review. At least they weren't paid, right? Wrong. Payment is simply one form of compensation. That "review unit" usually comes along with an email that says, "you don't need to send this back to us." Simply put, the item itself is payment. Just because you didn't get to choose the item, the form of compensation or were given a special title associating you with their brand doesn't mean you weren't paid. They paid you with product and exclaiming otherwise is a flat out lie by Youtubers who persistently try to claim otherwise. Rarely are these items cameras and lenses; they're usually "soft goods" or accessories, like bags, lens filter kits, etc. that would likely get damaged during a thorough review period or whose cost of manufacture and/or retail price is so low that the cost of return, reconditioning and resale would consume all or more of the potential profit.
As I've made clear in a previous post, nobody makes the perfect bag. It's a fools errand because "perfect" is subjective and what works for one is completely inadequate for another. However, the more modular a bag is, the better chance for it to become all things to all people by allowing all people to adorn it with all things to meet their needs. Looking further into this idea, especially since Peak Design's recent release of a fully redesigned bag lineup dubbed "v2," I've realized Peak Design is great at making accessories that meet the needs of most people but wrap it all up in bags that don't. Take their 45L Travel Backpack... it converts into a duffel with a forward facing, wide-mouth, zip opening. It's really not great for anything but a duffel bag that turns into a half-assed backpack for longer distance carry, especially for outdoors. However, for camera carry within, they've created camera cubes with efficient padding, mindful access port placement, an abundance of attachment points and durable exterior skin sufficient enough to be used on its own. A quick check of the external dimensions gave me an idea as the camera cube is nearly spot on with the dimensions of Shimoda Designs' large Integrated Camera Unit (ICU) for Explore and Action X backpacks.
Usually, Kickstarter is a collection of scams and bad ideas for internet virgins to be separated from their money. Sometimes, if you know what you're doing, it's a source for good deals. In this case, Shimoda Designs has established itself as a reliable maker of durable, action oriented camera backpacks. Shimoda decided to use Kickstarter as a "group buy" for their new line of Action X backpacks and mine managed to arrive just after Xmas.
I've been really busy lately, traveling up and down western Washington State, hiking and photographing both beaten and unbeaten paths. It began by trying to take advantage of a streak of good weather and morphed into chasing the autumn colors as the weather got colder. Hikes include: Alpine Lake Wilderness, Denny Creek, Mount Fremont Lookout, Annette Lake, Lake Twentytwo and Artist Point. All of these on consecutive weekends, and even some weekdays, over the past 3 weeks. And in that time I think I've posted just once. Maybe twice. So, here are 3 photos from the past week.
So, I tore down my Gitzo Mountaineer GT1542 to see what's so special about it. Actually, I do this with every tripod I buy to discover its weaknesses and proper disassembly for maintenance, cleaning, and lubrication. During the process I just happen to take a close look at each part to see how well it's been made, purely out of curiosity. In this case, I was truly interested to see if Manfrotto/Gitzo does anything differently during the manufacturing process that justifies the higher retail price or legendary status.