HOYA FUSION Antistatic Filters Series Review

HOYA FUSION Antistatic Filters Series Review - Hoya's FUSION antistatic filters are put to the test by Russian photographer Dmitry Evtifeev.

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Filters


Today, I’m reviewing a few interesting filters, all featuring an antistatic coating. The common filters without an antistatic coating always seem to accumulate dust from the air and it is usually advisable to keep these type of filters inside a protective case to remain clean otherwise, you may need a dust blower, dusting brush or cleaning cloth.

HOYA FUSION antistatic filters should greatly simplify the after-care process.

 

Left: a polarizer, the right UV.

The image has been taken so that the multi-coating is visible. If you look through them, they are absolutely neutral.

Content:

1. HOYA FUSION Antistatic types

2. HOYA FUSION Antistatic PROTECTOR

3. HOYA FUSION Antistatic UV

4. HOYA FUSION Antistatic CIR-PL

5. Summary

 

 

HOYA FUSION Antistatic filter types

  • HOYA FUSION Antistatic PROTECTOR
  • HOYA FUSION Antistatic UV
  • HOYA FUSION Antistatic CIR-PL

 

Let's consider them in turn:

 

HOYA FUSION Antistatic PROTECTOR

The basic function of this filter is, as the name suggests, to protect. But in addition to protection, the filter has a range of other useful features:

  • A new antistatic coating repels dust
  • Ultra-high transparency glass
  • Scratch resistance (enhanced coating protects during daily use)
  • Stain resistance (filter is resistant to ink, markers, etc.)
  • Water repellent coating (lotus effect, water is collecting into the beads and can be easily removed)
  • Finger stains are easy to clean off
  • High-quality glass from HOYA
  • HOYA proprietary one-piece low profile knurling edge filter frame

I didn't have this HOYA PROTECTOR filter available to test, so I have included the promotional video below, relevant for all three types of FUSION series.

 

HOYA FUSION Antistatic UV

However, I do have a sample of the HOYA FUSION Antistatic UV filter for review.

 

Hoya Fusion Antistatic UV


Hoya Fusion Antistatic UV

 

The thickness of the rim without the thread is 4.30mm (6.29 mm in total). It is thin, but not the thinnest on the market. The thickness is important when using filters with wide-angle lenses as if the rim is too thick, it may cause vignetting. Therefore, you should try to use filters with a thin rim, like the HOYA FUSION filters.

 

UV Spectrum Cut

Graph

 

The UV spectrum for most DSLR and mirrorless cameras is not harmful as the cameras sensor has an effective built-in UV filter.  Also, lens glass itself cuts a large part of the UV spectrum. However, my principled answer is yes, it is still possible to catch a UV spectrum on the sensor. This is especially important when shooting in the mountains and the sea.

According to the graphic above, we can see that the HOYA FUSION Antistatic UV filters cut the UV spectrum sharper than most previously tested UV filters.

I used a filter that cuts the visible and IR spectrum and took two shots: one without a filter and one with the HOYA FUSION Antistatic UV. The shooting object is a studio flash.

two shots: without filter and with HOYA FUSION Antistatic UV. The shooting object is a studio flash.

Left: Without HOYA FUSION Antistatic UV,  Right: With HOYA FUSION Antistatic UV

 

All previously tested filters did not show visible changes in the UV spectrum whereas the HOYA FUSION Antistatic UV filter noticeably cuts the remains of the UV spectrum, which falls on the sensor.

For fun, I looked on the infrared spectrum.

Infrared spectrum: without HOYA FUSION Antistatic UV  and with HOYA FUSION Antistatic UV

Left: Without HOYA FUSION Antistatic UV, Right: With HOYA FUSION Antistatic UV

 

It turned out that HOYA FUSION Antistatic UV slightly weakens it. This is good for normal shots as there is no various spurious emission (the IR spectrum is blocked only by the built-in filter on the sensor and is not blocked by the lens). If you are going to be capturing IR-shots, it is better to remove the HOYA FUSION Antistatic UV filter.

 

Water Repellency 

Nowadays, the UV-cut is not a primary feature for UV-cut filters, because as I said above, the most part of the UV spectrum is cut by the lens and the sensor's built-in filter and we don't often take photos in the mountains. However, it is quite a different story with moisture as this is relevant for most shooting situations but when using the HOYA FUSION Antistatic UV filters, you don't need to abandon your day of shooting when light rain starts to fall. As the below examples show. 

 

Drops on a filter

Knowing the special features of the filter, I just strongly shook it and voila – see below.

 

Most of the drops just flew off the filter! Impressive.

Most of the drops just flew off the filter! Impressive.

 

Dust Protection

The main innovation in this filter series is dust protection. The filter does not accumulate static electricity, therefore, does not attract dust like other filters. If you leave a normal filter out of its case, it will attract a lot of dust in a very short time.

Not all cleaning procedures are safe for the filter, especially when we have to clean it on the run. If a couple of sand grains are left unnoticed it is very likely they will leave scratches on the filter. Moreover, it is better to be engaged in shooting than cleaning the filter and for this reason, I am very pleased that HOYA FUSION Antistatic filters give us freedom from dust slavery!

But does this feature work? How did I check this? I simply put two filters in a dusty room and waited.

Let's put two filters in the dusty room and wait…

As you can see, the difference is significant.

 

Coating

I was interested in the difference in coatings between the HOYA HD and FUSION series.

Difference in coatings between the HOYA HD and FUSION series.

Left: HOYA HD UV, Right: HOYA FUSION Antistatic UV

 

Left is the HOYA HD UV, right is the HOYA FUSION Antistatic UV. Both give a yellow-green glare, but the HOYA FUSION Antistatic UV is brighter. Both are multi-coated.

 

Traditional filter vs  HOYA FUSION Antistatic UV

Left: Traditional filter, Right: HOYA FUSION Antistatic UV

 

To understand the importance of multi-coating I compared an uncoated filter and the Hoya Fusion. Left is an uncoated filter with a bright white reflection.

Now let’s check the polariser.

 

HOYA FUSION Antistatic CIR-PL

HOYA FUSION Antistatic CIR-PL

 

HOYA FUSION Antistatic CIR-PL

 

The thickness of the rim, without thread is 5.33 mm (7.38 mm in total). It is thin, but again it is not the thinnest filter on the market. For example, the visible part of a HOYA HD CIR-PL filter is 4.93 mm.

 

Filter Factor

 

before
after

 

The HOYA FUSION Antistatic CIR-PL filter decreases light by 0.68 f-stops.

 

Colour Rendering 

The measurement was carried out on the gray chart "X Rite Colorchecker", third from the right.

  • Without filter: 5300K -5
  • With filter: 5350K -8

The filter has almost no colour distortion.

 

Coating 

Left: HOYA HD CIR-PL  Right:  HOYA FUSION Antistatic CIR-PL

Left: HOYA HD CIR-PL, Right: HOYA FUSION Antistatic CIR-PL

 

Examples of photographs with Hoya Fusion Antistatic CIR-PL

before
after

 

Left: Without a filter. Right: Hoya Fusion Antistatic CIR-PL

 

before
after

 

Left: Without a filter. Right: Hoya Fusion Antistatic CIR-PL

 

before
after
 

Left: Without a filter. Right: Hoya Fusion Antistatic CIR-PL

 

before
after
 

Left: Without a filter. Right: Hoya Fusion Antistatic CIR-PL

 

before
after
 

Left: Without a filter. Right: Hoya Fusion Antistatic CIR-PL

 

Personally, I think this is a great polariser. However, one problem I found with the HOYA FUSION Antistatic CIR-PL is that it's not compatible with the lens cap on the Canon EF 24-70mm f/2.8L lens I used for testing. This doesn't mean all lens caps will be problematic, though. 

 

Bad compatibility with a lens cap

 

Summary

HOYA has released an excellent FUSION Antistatic filter series with a new anti-dust feature and now, instead of just having the previous series of HOYA high-end filters, we now have two stars: HOYA HD and HOYA FUSION Antistatic.

 

HOYA Filter

 

Both the HOYA HD and HOYA FUSION Antistatic filters are very interesting filters. I am not sure how easy it would be to combine antistatic features with ultimate protection qualities but it would be great if HOYA could do it as currently, we have to decide which filter best suits our needs – ultimate protection or a filter that is easy to clean. It’s a difficult decision, but if you choose either filter, you will not regret it.

Review by Dmitry Evtifeev


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