110 mm Working Distance Telecentric Lens: 20 Models, Resolution and Depth of Field

Direct answer: 110 mm is a fixed working distance shared by 20 POMEAS telecentric models, spanning magnifications from 0.2× to 2× and stated object-side resolutions from 4.5 μm to 16.8 μm. A fixed working distance does not mean a fixed field: at a given sensor size, the field is set by magnification, so the same 110 mm lens family covers very different part sizes.

All models at 110 mm working distance

Duplicate part numbers across language versions are collapsed. Models are ordered as published; check the Max sensor and Mount columns before shortlisting.

What a 110 mm working distance buys you — and what it costs

Working distance is a mechanical constraint first: it must clear the fixture, the lighting and any protective window between the lens and the part. Within that constraint, the number itself does not change resolution or distortion — those come from the optical design of each model. What it changes is which models are available to you. At 110 mm this list contains 20 models, so the practical question is not "is 110 mm good" but "which model at 110 mm has the magnification and resolution my part needs".

Three checks before you commit to this working distance

1. Total optical stack. Working distance is measured from the front of the lens to the object. Add the camera body depth, any extension and the mount adapter, then compare with the space your machine actually has.
2. Depth of field against part height. Read the DOF column for the candidate models. A taller part needs more DOF, and DOF falls as magnification rises.
3. Telecentricity stated or not. If your uncertainty budget includes telecentricity, choose a model that publishes it. Where the sheet is silent, we do not assume a value.

Field of view for every model in this group

Each row divides that model's published maximum sensor size by its magnification, so you can see at a glance which model covers your part. These are geometric figures, not vendor-published FOV, and they exclude any edge margin a specific sensor needs. For a smaller sensor, scale down by the same ratio.

Frequently asked questions

How many telecentric lenses does POMEAS make at 110 mm working distance?

20 distinct models, covering magnifications from 0.2× to 2×.

Does a longer working distance reduce resolution?

Not by itself. Resolution is an optical property of each design, not a function of distance. Compare the Resolution column across models rather than assuming a rule.

Can I extend the working distance with spacers?

Changing the optical spacing changes focus and, for non-telecentric designs, magnification. For a telecentric lens the magnification stays constant only within its designed depth of field. If 110 mm does not fit, choose a model built for the distance you need.

What field of view can I get at 110 mm?

Field depends on magnification and sensor, not on working distance. Take the magnification column and divide your sensor size by it; the FOV table on each model page gives the vendor figure.

Related pages

• Telecentric lens selection guide
• Magnification and FOV calculation
• When a telecentric lens is the wrong choice
• All telecentric models

Tell us the available space and the field you must cover; we will confirm which models at this working distance fit.