Owners appreciate the 5D Mark IV's optical viewfinder for its comfort and familiarity, important for those with large hands or who prefer traditional DSLR ergonomics.

Owners mention the satisfying "mirror slap" noise of the 5D Mark IV, a feature absent in mirrorless models and appreciated by DSLR enthusiasts.

Photographers switching to mirrorless note a significant improvement in autofocus precision, especially for dynamic portraiture, compared to the 5D Mark IV.

Used 5D Mark IV bodies are seen as a cost-effective option due to declining DSLR prices, with the potential to find one in excellent condition for around $1,000.

The 5D Mark IV can often be found in mint condition for around $1,000 used, providing a cost-effective option for those seeking a durable DSLR.

Some owners report selling the 5D Mark IV for more than they paid for newer models like the R6, due to its sustained value among DSLR enthusiasts.

Transitioning to mirrorless may require additional investment in RF lenses, which currently range from high-end to consumer-grade, unlike the extensive EF lens options.

The EOS R and 5D Mark IV share the same sensor, but the R offers enhanced autofocus and video capabilities, while the 5D Mark IV is noted for better battery life and dual card slots.

Owners frequently compare the 5D Mark IV to the EOS R, noting the R's superior autofocus and video capabilities despite sharing the same sensor.

The 5D Mark IV is suitable for landscape and astro photography, offering good low-light performance with fast lenses, despite newer cameras having slightly better high ISO performance.

The 5D Mark IV is recommended for photographers needing both dual pixel autofocus and dual card slots, particularly if they find a good deal.

The camera's 30-megapixel sensor is considered an optimal size for balancing file size and image quality.

The built-in GPS on the 5D Mark IV is highlighted as a convenient feature for photographers who need location data, unlike some RF bodies which lack this functionality.

The 5D Mark IV is noted for its robust build quality, making it suitable for demanding environments like desert races, withstanding dust, mud, and rain effectively.

The 5D Mark IV is praised for its low noise and vibrant color rendering, ensuring it remains relevant for still photography despite being an older model.

The 5D Mark IV's dual card slots are highlighted as beneficial for professional photographers who require redundancy.

The 5D Mark IV is noted for being a "tank" with full professional controls, appealing to those who prioritize durability in demanding environments.