Which Sigma pieces hold their value
- Art series primes and zooms, which are the line the company is respected for
- Lenses in currently supported mounts, which fit cameras people still buy
- Lenses with the original hood and caps, which are model-specific and expensive separately
- Fast apertures, which are what people buy a third-party lens for in the first place
And what pulls the price down
- Lenses in discontinued or abandoned mounts, which fit very little and sell poorly
- Autofocus calibration drift, which is a known issue on some older third-party lenses and needs a dock to correct
- Fungus or haze inside the elements, which spreads and permanently etches the coating
- Missing hoods, which are specific to the lens and surprisingly costly
Identifying and dating yours
These are the checks that decide which end of the range a piece sits in, and they are the facts a serious buyer will ask for:
- State the mount clearly in the title — it is the first thing any lens buyer filters on
- Hold the lens to a bright light and photograph through it, so haze and fungus are visible
- Say whether the lens is from the Art, Contemporary or Sports line, since they differ sharply in price
WishThrift does not authenticate or inspect anything. Condition and origin are described by the seller against five grades — what each one means — so photograph the markings above rather than asserting them.
What Sigma items are worth
The most-searched Sigma items on the site, with the band the label typically commands against the generic range for the same item:
| Item | Sigma range | Any brand |
|---|---|---|
| Camera Lens | £66–£440 | £60–£400 (~$88–$586) |
| Camera Flash | £22–£121 | £20–£110 (~$29–$161) |
Sterling guide ranges with an approximate US dollar equivalent at £1 ≈ $1.33 (July 2026). Sellers set their own asking price.
Every Sigma value guide
Selling Sigma on WishThrift
Listing is free and there is no commission on either side — the price you agree with the buyer is the amount you keep, whatever the label is worth. Create a free account, or read the selling guides for what to photograph and how to price.
Frequently asked questions
Is used Sigma worth buying?
It depends far more on the line than the label. Sigma is a third-party lens maker, and the resale question is always the same: which mount, and is it the Art line. The Art series is optically excellent and priced accordingly. Each guide below says which Sigma lines hold their value for that item and which have almost none, so you are comparing like for like rather than paying for the name alone.
How do I check a piece is genuine Sigma?
State the mount clearly in the title — it is the first thing any lens buyer filters on. WishThrift does not authenticate, inspect or grade anything — condition and origin are described by the seller, so ask directly and expect an answer. A seller who has the item will send a photograph of the marking in minutes.
What is used Sigma worth?
Across the 2 guides here, from about £22 to £440 (roughly $29 to $586) depending on the item and its condition. Grades run New with Tags, Like New, Good, Fair and For Parts.
See also: value guides by brand · all value guides · buying guides · selling guides · condition grades.