A Taller Stack (of pancakes)

Order Up: My new (fourth) pancake lens, a Viltrox 28mm F 4.5, has gotten rave reviews since its introduction in 2024. As a photographer, there has to be some good reasons to justify its purchase. To wit: 

• It is cheap: The MSR, if that applies to web-exclusive purchases, is just shy of $100.00, or maybe less if you shop around. I've seen them as low as $70 on eBay, as of today. I opted to pay the full Benjamin on Amazon to ensure prompt delivery.
• It is sharp: Reports have universally praised the lens for its sharpness, and it lived up to the hype based on my limited experience.
• It has autofocus: This lens is probably the lowest priced autofocus mirrorless camera lens. It bumped the former low priced champion, the 7artisans 27mm F 2.8.
• It offers full-framed coverage: This is the big one. On a Fuji APS sensor body, its a "short normal" lens. On a full-frame Sony it is a true wide-angle lens. For me, this makes the lens better aligned with my street photography philosophy of "Wider Is Better".

Meh To Blah: You have to be realistic about your expectations on a lens made to fit this price point.

• Type C USB Port: Like my TTartisan 28mm 2.8, this lens can update its firmware using a USB port, although Viltrox chose to put the interface in the lens mount. If you do buy this lens and find yourself needing an firmware update, view this video first. It makes the process appear almost simple. 
• Fixed 4.5 aperture: I do not know if this was a concession to the price point or the lack of internal space. Nonetheless, the lens has a fixed, non-adjustable aperture of 4.5.  If we were to follow the tried and true "Sunny Sixteen Rule", setting your camera to an ISO setting of 100 would require a shutter speed of shorter than 1/800 of a second for a proper "bright sunlight" exposure. I have a partial work-around, which I'll discuss -later. Don't expect any dramatic front-to rear depth of field photos with such a large aperture.
• Long Minimum Focusing Distance: The online specifications set the minimum focusing distance to about .3 meters, or about one foot. Not an issue for a  general purpose lens, but a limitation worth remembering.
• Sliding Lens Blinder. In spite of its tiny size, the designers managed to squeeze in a sliding blinder that protects the lens. There is a knob on the front lens bezel that, when rotated clockwise, retracts the blinder allowing the lens to extend slightly and assume the "ready position". I neglected to mention this in my first post, but as you will see, this feature will become inaccessible as I start adding accessories to the lens.
• No Provisions For Filters: With a fixed aperture of 4.5, a neutral density filter could certainly help control exposure, assuming that one could be attached. While Viltrox made no such provision, some clever people at Filmatura created an adapter to mount a 52mm filter to the Viltrox lens barrel. Check out the video here.

Out Of This World. I make joke. Here is a photo, taken from the website, of the 3-D printed Filmatura adapter. It is threaded to accept 52mm filters from the front while having a friction fit on the barrel of the Viltrox lens on the other end. Currently, it is in transit from somewhere on the planet, so the cloud background is sem-appropriate. When it arrives, I will have a 52mm polarizing filter I can play with, and an assortment of 49mm accessories adapted for use from a 49mm female threaded Fuji X100 filter pack. When the adapter arrives I will experiment with my filtration options.  I do not know if any of my current accessories will induce vignetting in the frame corners, so I'll just have to see what I'll need to buy so I can make everything work together. 

Christopher Frost has an excellent review of the lens. View it by clicking here.