Despite white wall tests of the Canon EF 28mm and 135mm lenses showing acceptable levels of vignetting, my first real world use of them ended in failure.
If you'd like to contribute your findings, please include lens specifics (brand, focal length, maximum aperture, lens version, firmware version, and if it's weather sealed or stabilized), adapter used, and camera used. Full sensor sample shots without the lens hood (JPEG, 2000x1500 pixel minimum) needs to be of a white or gray background at the widest aperture at both minimum and infinity focus, repeating this at ƒ/8 and at minimum aperture, be it ƒ/22 or ƒ/32.
As I have alluded to in a burst of recent posts, I am planning to generate a small database of lenses for use on the Fujifilm GFX series. Here's my chance for an introduction to give my rationale and to lay the foundation of this endeavor. I'd like to break this down into three "Y's." Let's begin with a personal "why": I'm choosing to use Sigma lenses to obtain focal lengths and apertures not currently offered in the GF lens lineup. Fujifilm's lineup is sparse at best, and apertures wider than ƒ/2 aren't represented. It's not that I'm a bokeh whore; it's that I need more light gathering for astrophotography and Fujifilm's widest lens, a 23mm, has a maximum aperture of ƒ/4 and that's just not going to work without a star tracker due to the sensor's 51MP resolution. I'm hoping to print a few of these so what counts for "sharp" on the web doesn't work at 20" print sizes. Other benefits: 35mm lenses are much cheaper, especially used prices, and these lenses mostly have direct focusing units unlike the "fly by wire" systems used on Fujifilm lenses. The GFX system just isn't mature enough to have grown both a complete lens lineup or a diverse used lens market.
Today will be my first opportunity for an overnighter in the mountains near Mt. Rainier. During the extended offseason, I used the opportunity to upgrade most of my camping gear to reduce mass and improve efficiency. Much of this was forced as compensation for adding the larger, heavier Fujifilm GFX medium format camera system. The result of throwing money at the problem is an overnight kit that fits completely within my Action X70 backpack while still having 15-20 liters of space left over and weighing in below 20kg. To demonstrate both the efficiency of my chosen gear and my packing skills, I made a short video of my unloading all of the camping gear from my backpack's expandable 35 liter cargo compartment.
I'll make this quick: this is the best middleweight backpack I've found for photography so far. It's not the fastest or most rugged, but it's the most versatile and comfortable. Let me explain.
A quick comparison between two products designed mostly to perform the same function. In case you're not familiar with an L-bracket, it's function is purely to allow rotation of your camera by 90 degrees while keeping it balanced on the X axis of your tripod. This is especially important for panoramas so the camera yaws directly over the center point rather than circumnavigating it, which alters the perspective enough to make stitching the result more difficult or even impossible.
While I often strayed away from repeatable testing to include a healthy amount of subjectivity, I'm now embracing my biases and forgoing all pretense of being "unbiased," and here's why: I have my skin, aka wallet, in the game. Unlike others who are receiving review units, renting, being gifted items to review or receiving some form of compensation, I'm reviewing stuff that I've actually bought. These are things I've intensely researched, bought, used, and intend to keep. Sometimes I buy purely out of objective needs, like my ND filters. Other times, I'm driven by subjective factors, like my choice to use Fujifilm bodies and lenses. Either way, my purchases are made based on a conclusion I've formed from equal parts objectivity and bias. I am biased. My reviews are biased. I'm not justifying my purchases to anyone but I simply cannot claim to be unbiased when reviewing my own gear. The goal of my reviews are to identify potential pitfalls to avoid the expense of experimentation. It's not my goal to tell you what to buy; my desire is to expose aspects of an item only an owner would notice. There can be things that you're blind to upon purchase, features and issues that can make or break it for you, and this jeopardy goes up exponentially as the price increases, especially if bought used. This is my choice to be an advocate and to avoid being an "influencer."
While others have found the pandemic to be an opportunity to do more personal projects, and document them, I've found it has affected me a bit differently. My girlfriend is a neurotic RN, so I've had to respond a little differently and haven't had the free time to work on things like my journal or this blog. Now that things are starting to return to normal, I'm slowly starting to integrate all of the things I was doing before. Yet, just as I begin to get back to work, our streets have erupted in rightful protest. Others can and have done a better job in covering the protests, so I'll leave that subject alone until I have a fully formed commentary on the matter. If there's one thing I prefer to do, it's to stop, listen and form a thoughtful opinion and avoid emotional "hot-takes," especially silly on a subject as important as racism in America.
I am proud to announce a new, specialty product category. After months of preparation, fast tracked due to the recent viral pandemic, I am excited to now offer high concept, professionally directed sessions designed to celebrate your new best day of your life: your divorce. Let my photography give your ex the middle finger they... Continue Reading →
As you may know, Fujifilm offers an AC adapter for the GFX series and it's priced at a whopping $97. However, there's another option for AC wall charging as long as you know the power specs. A more versatile option is a power bank with pass through charging. You can power the GFX with the battery pack in the field while simultaneously charging the installed battery. When you’re near an outlet, you can also connect the power bank to AC power and continuously power the camera without depleting the power bank itself. By functioning as an AC wall adapter you won't need to buy a wall adapter specifically for the GFX while having all the benefits of a portable battery pack.
Coming soon from Apple is the recently announced Magic Keyboard for iPad Pro. Like before, it's a combined protective case and keyboard, but this one will have 2 dampened hinges and a secondary USB-C port for passthrough charging. The headline feature though is the inclusion of a trackpad and accompanying, underlying changes to iPadOS and the UI to accommodate the use of a pointing device for navigation. Basically, the iPad is becoming more laptop-like since the diversion from a unified iOS code base to separate iPadOS and iPhoneOS. Now the hardware will begin to reflect that change.
Added a quick link to the header menu as well as sidebar widgets to access the categories menu. That should make accessing posts related to the lens database easier. You may also use the direct address here: https://jetcityninja.com/category/adapting-gfx/