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FUJIFILM GF 23mm f/4 R LM WR Lens
- Ideally suited for architectural, landscape, and interior photography, this wide-angle prime lens offers an 18mm equivalent focal length.
- The 15 elements in 12 groups of optical design incorporate a pair of aspherical elements to reduce spherical aberrations and distortions for cleaner, more realistic rendering and sharper image quality.
- Two extra-low dispersion elements and one Super ED element are also featured to control color fringing and chromatic aberrations for improved color fidelity and clarity.
- A Nano GI coating has been applied to individual elements to suppress surface reflections, flare, and ghosting for improved contrast and color accuracy when working in strong lighting conditions.
- A linear AF motor is used for quick, quiet focusing performance and an internal focusing mechanism maintains the overall length of the lens during operation and also produces consistent optical performance throughout the focusing range.
- The physical aperture ring allows for intuitive adjustment over exposure settings and incorporates a C (Command) position to permit camera-based aperture settings.
- Dust- and weather-sealed physical construction enables working in harsh climates and temperatures as low as 14°F.
- The rounded nine-blade diaphragm contributes to a pleasing bokeh quality.
Fuji GF 23mm f/4 R LM WR Review
The Fujifilm GF 23mm f/4 R LM WR is the de facto ultra-wide-angle lens for larger-than-full-frame GFX series cameras if you are looking for a native Fujinon lens. You do have a couple of third-party options. The artisans 11mm f/2.8 is quite a bit wider with its fish-eye approach and there is a Laowa 17mm f/4 option as well.
The GF 23mm f/4 R LM WR yields an 18mm full-frame equivalent field of view which can be used for a myriad of topics but foremost would draw the attention of landscape, interior, and architecture photographers.
Fujifilm Canada kindly lent me the GF 23mm f/4 R LM WR and a Fujifilm GFX 50S II for my review.
a Fujifilm GFX 50S II for my review.

Fujifilm GF 23mm f/4 R LM WR - Introduction
The Fujifilm GF 23mm f/4 R LM WR was introduced in the spring of 2017 alongside the GF 110mm f/2 R LM WR. At that point, the widest option for the GFX Series was the GF 32-64mm f/4 zoom lens, and early adopters of the GFX system, especially landscape photographers, rejoiced that they now had a good option in the G mount lineup for wide-angle photography.
The two new lenses also sent a signal that Fujifilm was serious about making high-end, solidly constructed, lenses for their current and upcoming GFX cameras.
At the time this review was posted the GF 23mm f/4 R LM WR was priced at $2,599.00

Fuji GF 23mm f/4 R LM WR - Handling and Specs
The moment you lay hands on the Fujifilm GF 23mm f/4 R LM WR you know you are dealing with a solid piece of photography kit. At 1.86 lb / 845 g and dimensions of 3.54 x 4.06" / 89.8 x 103 mm the weight feels substantial and you will need to allow for some space in your photo bag.
If you plan to buy filters allow for extra cost due to the somewhat large 82mm filter thread. But at least you can add filters which is not always the case with some ultra-wide-angle lenses having bulbous front elements.
Fujifilm GF 23mm f/4 R LM WR - Sample Images
Please see the sample images below. Editing was done in Capture One and I used Fujifilm's film simulations for some of the photos, especially Nostalgic Neg. and Acros.
Specification
Focal Length | 23mm |
Maximum Aperture | f/4 |
Minimum Aperture | f/32 |
Lens Mount | FUJIFILM G |
Angle of View | 99.9° |
Minimum Focus Distance | 1.25' / 38 cm |
Maximum Magnification | 0.09x |
Optical Design | 15 Elements in 12 Groups |
Diaphragm Blades | 9 |
Focus Type | Autofocus |
Image Stabilization | No |
Filter Size | 82 mm (Front) |
Dimensions (ø x L) | 3.54 x 4.06" / 89.8 x 103 mm |
Weight | 1.86 lb / 845 g |
Packaging Info
Package Weight | 3.45 lb |
Box Dimensions (LxWxH) | 8.3 x 7.5 x 6.5" |
Tips for protecting your children online
In today's digital age, ensuring your children's safety while they browse the internet is paramount. As they explore the vast online world through smartphones, gaming consoles, laptops, and other devices, it's essential to implement measures to shield them from potentially harmful content and interactions. Here are some tips to help you safeguard your children online:
1. Communication is Key
Open and ongoing communication with your children about online safety is crucial. Discuss the potential dangers they may encounter online, such as pornography, cyberbullying, and violent content. Encourage them to come to you with any concerns or questions they may have.
2. Set Clear Boundaries
Establish clear rules and boundaries regarding internet usage. Define appropriate time limits for browsing and specify which websites and apps are off-limits. Make sure your children understand the consequences of violating these rules. You can also restrict some of these apps or online content utilising device level parental controls explained below.
3. Utilise Parental Controls
Take advantage of the parental control features available on devices and internet browsers. These controls allow you to block access to specific websites, set age-appropriate content filters, and monitor your children's online activities. Familiarise yourself with the parental control options on smartphones, gaming consoles, and laptops to effectively manage your children's online experiences.
4. Educate Yourself
Stay informed about the latest trends and technologies related to online safety. Familiarise yourself with popular social media platforms, gaming communities, and messaging apps that your children may use, including the functions they provide. This knowledge will help you understand the potential risks and take appropriate action to protect your children.
5. Monitor Their Online Activities
Regularly monitor your children's online activities to ensure they are adhering to the rules and staying safe. Keep an eye on their browsing history, social media interactions, and messaging apps. Be vigilant for any signs of cyberbullying or exposure to inappropriate content.
6. Encourage Safe Online Behavior
Teach your children about the importance of practicing safe online behavior. Remind them never to share personal information, such as their full name, address, or phone number, with strangers online. Encourage them to think critically about the content they encounter and to report anything that makes them feel uncomfortable or unsafe.
7. Lead by Example
Be a positive role model for your children by demonstrating responsible and respectful online behavior yourself. Show them how to navigate the internet safely and responsibly, and emphasize the importance of treating others with kindness and empathy online.
8. Reporting abuse, making complaints and finding more information
For additional resources and guidance on online safety, visit the Australian e-Safety Commissioner's website at www.esafety.gov.au. Here, you'll find a wealth of information, including tips for parents, educational resources for children, and tools for reporting online abuse and harassment.
You can also report abuse through the website’s online form.
By following these tips and utilising available resources, you can help keep your children safe from pornography, cyberbullying, violent content, and other unsafe material while they navigate the internet. Remember, proactive measures and open communication are key to fostering a safe and positive online environment for your family.
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