subject distance

USAGE SUMMARY

The phrase "subject distance" is correct and usable in written English.
It can be used in contexts related to photography, psychology, or education, where the distance between a subject and the observer or camera is relevant. Example: "In photography, adjusting the subject distance can significantly impact the composition and focus of the image."

✓ Grammatically correct

Science

Encyclopedias

News & Media

Human-verified examples from authoritative sources

Exact Expressions

15 human-written examples

These features provide versatility in image control (sharpness distribution, subject distance, and perspective), though not speed in use.

Encyclopedia Britannica

The problem gets worse as the subject distance and/or optical focal length increases.

European Transport Research Review

For a known FOV, the area can be determined by the subject distance (D) and the length UV ¯.

Visualization in Engineering

The most relevant parameters of the CCTV system to this research include FOV, camera height, target height, subject height, subject distance, and the real angle of depression.

Visualization in Engineering

Real angle of depression : The Real angle of depression can be referred to as the end result once the camera height, target height, and subject distance are specified.

Visualization in Engineering

The Home Office also offers an operation manual (Cohen et al., 2009: 8–9) that defines the concepts of subject height and subject distance.

Visualization in Engineering

Human-verified similar examples from authoritative sources

Similar Expressions

45 human-written examples

It does this using intelligence around the subject matter, distance, ambient exposure and more in the time it takes to pop the shutter off.

TechCrunch

At lower power or near subject distances the duration of a computer flash may drop to 1/50,000 second.

Encyclopedia Britannica

The 35-mm camera has a lens with a range of apertures and a shutter with exposure times typically from one second to 1/1,000 second or shorter, and it can focus on subject distances from infinity down to five feet or less.

Encyclopedia Britannica

The aperture adjusts image brightness and the range of subject distances one can focus sharply at one setting.

Langford's Basic Photography The guide for serious photographers

Among the 6 people sampled more than once, we calculated the difference of average between vs. within subject distances for both the weighted and unweighted UniFrac values.

Plosone

Expert writing Tips

Best practice

In scientific contexts, always measure and report the "subject distance" accurately to maintain experimental validity.

Common error

Avoid interchanging "subject distance" with focal length. "Subject distance" refers to the distance between the camera (or observer) and the subject, while focal length is a property of the lens.

Linguistic Context

The phrase "subject distance" primarily functions as a noun phrase, identifying the space separating the subject and observer. Ludwig shows this phrase is grammatically correct. It commonly appears within technical discussions related to photography and surveillance, as well as in scientific research contexts.

Expression frequency: Common

Frequent in

Science

56%

Encyclopedias

13%

News & Media

10%

Less common in

Wiki

6%

Formal & Business

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "subject distance" refers to the space between the subject and the observer or camera. Ludwig AI confirms its grammatical correctness and wide applicability. It appears commonly in scientific and technical contexts, such as photography, surveillance, and research. While using this phrase, avoid confusion with related terms like focal length. Accurate specification of the "subject distance" is crucial for clarity and precision in both technical writing and practical applications.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

object distance

Replaces "subject" with "object", focusing on the physical object rather than the subject of observation.

camera-subject distance

Specifies the distance specifically between a camera and the subject.

distance to subject

Reorders the words to change the emphasis, focusing on the distance itself.

focal distance

Emphasizes the distance required for proper focus in photography or optics.

viewing distance

Highlights the distance from which something is being viewed.

observer distance

Highlights the distance between an observer and the subject.

range to subject

Uses "range" instead of "distance", implying a scope or extent.

target distance

Specifies the distance to a target, often in contexts like surveillance or aiming.

inter-subject distance

Describes the distance between multiple subjects, rather than a single subject and an observer.

working distance

Refers to the distance at which a tool or instrument functions optimally, often in microscopy or manufacturing.

FAQs

How does "subject distance" affect a photograph?

The "subject distance" influences the perspective, depth of field, and overall composition of a photograph. A shorter "subject distance" can create a shallow depth of field and emphasize details, while a longer distance can flatten the perspective and include more of the background.

What is a good "subject distance" for portrait photography?

A typical "subject distance" for portrait photography is between 5 and 10 feet, depending on the desired field of view and lens focal length. This range allows for a comfortable perspective and flattering proportions.

What are some alternative terms for "subject distance"?

Depending on the context, you can use alternatives like "object distance", "camera-subject distance", or "viewing distance".

How do changes in "subject distance" affect the real angle of depression in CCTV systems?

As mentioned in the search results, the real angle of depression in CCTV systems is affected by the "subject distance", along with camera height and target height. Specifying the "subject distance" is essential for optimizing the real angle of depression.