In my opinion, the best Canon RF lens for real estate photography is Canon RF 15-35mm f/2.8L IS USM.

For real estate photography, you want lenses that can capture wide angles and details effectively. 

Zoom Lens:

Canon RF 15-35mm f/2.8L IS USM ($2,099)

• Although it's a zoom lens, its performance and versatility make it an essential choice for real estate photography, allowing you to capture wide shots and various perspectives in different spaces.

Prime Lens:

Canon RF 16mm f/2.8 STM ($299)

• This is a compact and lightweight prime lens that’s ideal for tight spaces, allowing you to capture wide-angle shots with a good depth of field, making it easier to showcase room layouts and features.

I use RF 10-20mm f/4 L IS STM lens, though it is a bit expensive, it really works well at most time for RE work.

If you are looking for some lenses for real estate photography, such as Canon EOS R5, you could try Canon RF 15-35mm f/2.8L IS USM lens. It stands out as the ideal choice, combining wide-angle capabilities, low-light performance, and professional image quality, making it an essential tool for capturing stunning property images. However, the price is over $2,000!

Here are some good lenses for REAL ESTATE:

1. Canon RF 15-35mm f/2.8L IS USM

• Description: Ideal for capturing wide interior shots and expansive landscapes.
• Key Features: Wide-angle focal length, constant f/2.8 aperture, Image Stabilization.
• Benefits: Excellent sharpness, minimal distortion, great for low-light conditions.
• Suitability: Perfect for real estate photography, especially in tight spaces or when emphasizing room sizes.

2. Canon RF 24-105mm f/4L IS USM

• Description: Versatile lens suitable for various real estate photography scenarios.
• Key Features: Standard zoom range, Image Stabilization, f/4 aperture for consistent lighting.
• Benefits: Balanced focal length for interiors and exteriors, good image quality.
• Suitability: Offers flexibility for capturing different angles and perspectives in real estate photography.

3. Canon RF 16mm f/2.8 STM

• Description: Specialized lens for capturing ultra-wide shots with an artistic touch.
• Key Features: Ultra-wide focal length, compact design, fast f/2.8 aperture.
• Benefits: Distortion control, creative perspectives, good for unique property features.
• Suitability: Ideal for emphasizing space and creating visually impactful real estate images.

4. Canon RF 35mm f/1.8 IS Macro STM

• Description: Macro lens with a moderate wide-angle view for detailed shots.
• Key Features: Versatile focal length, macro capabilities, Image Stabilization.
• Benefits: Sharp images, close-up details, can double as a general-purpose lens.
• Suitability: Great for highlighting intricate features, textures, and small spaces in real estate photography.

When it comes to real estate photography for Canon mirrorless camera, having the right lens can make a significant difference in capturing details and providing a sense of space. 

1. Canon RF 15-35mm f/2.8L IS USM

Overview:
This wide-angle zoom lens is perfect for capturing interiors and exteriors of properties. Its versatile focal range allows photographers to include more of the scene, making it ideal for tight spaces.

Price:
Approximately $2,099 at Amazon

Pros:

• Fast f/2.8 aperture throughout the zoom range for excellent low-light performance.
• Image stabilization helps to minimize camera shake.
• High-quality L-series optics for sharp, clear images.

2. Canon RF 24-70mm f/2.8L IS USM

Overview:
One of the most versatile lenses for a mirrorless camera, the RF 24-70mm offers a useful range for capturing both wide interiors and more intimate details in real estate.

Price:
Approximately $2,399 at Amazon

Pros:

• Consistent f/2.8 aperture for great control over depth of field.
• Image stabilizer for sharp handheld shots.
• L-series build quality ensures durability and outstanding image performance.

3. Canon RF 16mm f/2.8 STM

Overview:
This is a more budget-friendly option that provides an ultra-wide-angle perspective, ideal for small and cramped spaces often found in residential real estate.

Price:
Approximately $279 at Amazon

Pros:

• Lightweight and compact design adds portability.
• Fast f/2.8 aperture allows for decent low-light performance.
• Excellent for capturing wide shots without distortion.

Canon RF 15-35mm f/2.8L IS USM is OK!

Same here!

Late to the party but I wanted to share my experience because I learned the hard way. When I first switched to my current setup, I was so focused on getting the widest view possible that I totally ignored how the light hits the glass. I ended up with these weird flares in a high-end kitchen shoot that basically ruined the shots. If you're jumping in, I would suggest being super careful about a few things:

• make sure to check for chromatic aberration near high-contrast windows
• always use a lens hood if you can, even indoors
• triple check your vertical lines in the viewfinder before you click I eventually found a lens that worked for me, but the learning curve with wide glass on a high-res sensor like that is steeper than people say. Just dont rush into the most expensive thing without testing how it handles distortion in real-world rooms first... I'm still a bit nervous every time I swap gear tbh.

RF 15-35mm f/2.8L IS USM, if you don't mind the price.

Canon RF 15-35mm f/2.8L IS USM is OK.

Canon RF 15-35mm f/2.8L IS USM is an excellent choice for real estate photography.

RF 10-20mm f/4L or RF 15-35mm f/2.8L