Two airbrushes come up again and again once a Gunpla builder or miniature painter is ready to stop buying cheap and buy right: the Iwata Eclipse HP-CS and the Harder & Steenbeck Evolution 2-in-1. Both are genuine buy-it-for-life tools, and neither is a mistake. They just answer the "one good airbrush" question with two different philosophies. The decision comes down to a single question: do you want one all-round nozzle, or two swappable ones?
The quick answer
Buy the Iwata Eclipse HP-CS if you want the simplest possible "just works" brush — one forgiving nozzle that primes, base-coats, and shades without you ever thinking about parts. Buy the H&S Evolution 2-in-1 if you want a single brush that stretches from hairline detail to fast primer coverage by swapping nozzle sets.
Check the Eclipse price on Amazon · Check the Evolution price on Amazon
From the shop
Browse the shop →Original designs from this site, made to order.
Head to head
| Iwata Eclipse HP-CS | H&S Evolution 2-in-1 | |
|---|---|---|
| Nozzle | One E3 nozzle: no diameter in Iwata's US documents; 0.3 mm on ANEST IWATA's Japanese page | 0.2 mm + 0.4 mm (swappable) |
| Feed | Gravity, dual-action | Gravity, dual-action |
| Nozzle design | Compression-fit drop-in (Iwata: "no threading required nor recommended") | Self-centering drop-in (no threads) |
| Seal | Solvent-resistant needle packings (Iwata sells a PTFE packing set) | Solvent-resistant PTFE |
| Best for | One-and-done simplicity | Fine detail to primer coverage |
| Made in | Japan | Germany |
Eclipse column: Iwata's product page, manual, parts list and FAQ, plus ANEST IWATA's Japanese Eclipse page; our Eclipse HP-CS review has the full specifications.
One nozzle vs two
The Eclipse ships with a single nozzle, and that one aperture is the whole design. Iwata's US documents do not print its diameter; the only figure on an ANEST IWATA site is 0.3 mm, on the Japanese page for the Japan-market HP-CS. Iwata describes the Eclipse's range as running from a controlled fine line to a controlled wide spray, which covers camouflage feathering and panel shading as well as primer and base coats. You never swap anything, never lose a tiny nozzle, and only ever learn one tool.
The Evolution 2-in-1 earns its name by including two complete needle-and-nozzle sets — a 0.2 mm and a 0.4 mm. The 0.2 mm pulls a genuinely finer line than the Eclipse for eye-level detail and freehand camo; the 0.4 mm opens up for primer and base coats across a whole 1/100 kit in one pass. You effectively get a detail brush and a workhorse in one body — if you are willing to swap sets and keep track of small parts.
Here is the honest read: the Eclipse's single nozzle sits between the Evolution's two (0.3 mm on ANEST IWATA's figure, against 0.2 and 0.4 mm). For most builders it covers both jobs without ever changing a thing. The Evolution only pulls ahead if you genuinely chase the finest detail and regularly prime large surfaces, and are happy to switch nozzles between those tasks.
If you want to see exactly where the nozzle, needle, and trigger sit before you spend a cent, our interactive 3D field guide labels every part of a gravity-feed brush in plain language.
Trigger and feel
Both are gravity-feed and dual-action — down for air, back for paint — so the core control is identical, and it is the two-axis control you want. The difference is in the details.
The Eclipse has no MAC valve and ships with a plain cutaway handle; Iwata sells a preset handle, which limits how far the trigger can be pulled back, as an optional extra. You meter paint with the trigger and set pressure at the compressor's regulator. In practice that is a non-issue once you have muscle memory.
The Evolution's trigger is famously light, its needle tension is tunable, and H&S sells an optional pre-set handle if you later want a hard mechanical stop for repeatable fine lines. That upgrade path is part of what "forever brush" means for the German option: you can bolt on precision as your skills grow.
Cleaning and maintenance
This is closer than it looks, because neither brush uses a threaded nozzle. The Evolution's nozzle is a self-centering drop-in design, so there are no fine threads to cross-thread and strip, and it uses a solvent-resistant PTFE seal.
The Eclipse is built the same way where it counts. Its compression-fit nozzle drops into place under the head cap, and Iwata says "there is no threading required nor recommended"; Iwata also describes the Eclipse's needle packings as solvent-resistant and sells a PTFE needle packing set. The one Eclipse rule to learn is Iwata's own: do not separate the two parts of the HP-CS nozzle. Both brushes strip down quickly and both survive a beginner's learning curve. Whichever you buy, the routine in how to clean an airbrush keeps tip dry away and both spraying cleanly.
Price
Dealer prices for both move, so compare them on the day you buy. If you know you only want one all-round nozzle, a second nozzle set is not where your money should go — a quiet compressor with a tank matters more to your finish than a second nozzle you rarely fit. If the budget is tight but you want H&S build quality, the single-nozzle Harder & Steenbeck Ultra brings the German engineering down a tier; we cover it in the budget airbrush roundup.
Which should you buy
Buy the Eclipse HP-CS if you want one brush, one nozzle, and zero decisions — the pick that ends the search for the vast majority of builders. Check the Eclipse price on Amazon
Buy the Evolution 2-in-1 if you want detail and coverage from one body and are happy to swap nozzle sets to get it. Check the Evolution price on Amazon
Still choosing your first brush overall? Our best airbrushes guide ranks the whole field, and if the feed types still confuse you, gravity-feed vs siphon-feed explains why both of these are gravity-feed for a reason.
Ventilation, either way
Whichever brush you pick, an airbrush atomizes paint into a fine mist you will breathe. Spray in a booth or beside a window with a fan pulling air away from your face, and wear an organic-vapor respirator whenever you shoot lacquers or lacquer thinners. Both of these tools are safe; the habits around them are what make the hobby safe.
The verdict
You cannot lose here. The Iwata Eclipse HP-CS is the better default: one forgiving nozzle, wear parts Iwata still sells, nothing to think about. The Harder & Steenbeck Evolution 2-in-1 is the better range tool: two nozzle sets, for fine detail and wide coverage from one body. Pick the Eclipse if you value simplicity, the Evolution if you value versatility. Then stop researching and go spray something.
Buying this as a gift and can't decide? Send a Giftcards.com gift card instead →
From the shop
Browse the shop →Original designs from this site, made to order.
A quick, honest note: some links on this page are affiliate links. As an Amazon Associate we may earn a commission when you buy through them, and we also earn from other programs such as eBay Partner Network — at no extra cost to you. It never changes the price you pay.
Questions builders ask
Is the Iwata Eclipse or H&S Evolution better for beginners?
For a pure beginner the Eclipse HP-CS is the easier start: one all-round nozzle, with nothing to swap or lose. The Evolution 2-in-1 is just as beginner-safe to spray, and both use drop-in nozzles, but its two nozzle sets add a small "which one do I fit?" step a first-timer does not strictly need. Both survive the learning curve.
What is the difference between the H&S Evolution and Evolution 2-in-1?
The standard Evolution ships with a single nozzle. The Evolution 2-in-1 adds a second complete needle-and-nozzle set — a 0.2 mm and a 0.4 mm — so one brush covers fine detail and wider coverage. If you want the range, the 2-in-1 is the version worth buying; if you only ever want detail, the single-nozzle model saves a little money.
Does the Eclipse HP-CS nozzle limit fine detail?
Only at the extreme. Iwata describes the Eclipse as covering a controlled fine line through a controlled wide spray; its US documents give no nozzle diameter, and ANEST IWATA's Japanese page lists 0.3 mm for the Japan-market HP-CS. For hairline freehand on a display piece, a 0.2 mm nozzle like the Evolution's finer set, or an Iwata Custom Micron, pulls a thinner line. For most scale-model and miniature painting, the Eclipse's nozzle is not the limiting factor.
Do I need a different compressor for either airbrush?
No, as long as the compressor has a regulator and holds a steady pressure. For the Eclipse HP-CS, Iwata gives an optimal working pressure of 25 to 35 psi and says to set it while air is flowing. A model with a tank and moisture trap gives smoother, drier air that pulses less, which matters more to your finish than which of these two brushes you choose.
