Ayrshire Landscape Photography - Robert Strachan » hitech

Hitech Pro Stop review

admin — Sun, 29 May 2011 16:06:31 +0000

When Lee released the ‘Big Stopper’ in 2010, they massively underestimated how much of a demand there would be for a decent 10 stop filter. Before the Big Stopper arrived, the only square 10 stop ND filter was the 10 stop filter from Hitech. Unfortunately this filter had a few problems. It was very prone to flare even if you covered all around the filter. It also was sensitive to IR which gave a hard to remove colour cast to foliage and greenery.

Fast forward 12 months and Lee cant make enough Big Stoppers to meet demand. The glass for the filters is sourced overseas, so supplies are patchy with people having to wait quite some time before receiving their filter.

Filter

The people at Formatt-Hitech saw how much of a demand there was for this filter and decided to go ahead and re-develop their 10 stop filter. The first thing they decided to do was to emulate Lee’s idea and install a gasket to the filter. They also designed a new CR39 resin which was much more resistant to IR than the previous one. All components of the 10 stop filter are manufactured and sourced in the UK. The resin is made at their factory in South Wales and as a consequence Formatt aim to turn around most orders in a couple of days.

Hitech went a little further than Lee though. Instead of just designing one filter, they have a whole range of Pro Stop filters from 6 stops to 10 stops. Filters are also available in an 85mm size as well as a 100mm version. The 85mm version will be welcomed by Cokin filter users as an inexpensive entry to long exposure ND filters. To cater for Lee filter users, the 100mm filter comes with a 1.5mm gasket to fit in the Lee holder. The Hitech holder is slightly different and the Pro Stop caters for this with a thicker 3mm gasket.

Packaging

The Pro Stop ND filter comes, for the moment, in a padded cloth pouch very similar to the pouch that Lee filters are supplied in. Over the next couple of weeks the cloth pouch will be changed to a leatherette one with the same padded protection as the cloth pouch but with a different exterior material. The filter also comes with a handy exposure guide as once the filter is on the camera the metering wont work properly so the guide is invaluable to get the exposure correct.

Testing

As with my previous 10 stop filters review, I tested these filters under a few different conditions over the course of a couple of weeks. This time I used two lenses for my tests, a Tokina 11-16mm Ultra wide angle and a Nikon 18-70 lens. For these tests I decided not to cover around the Filter holder as I did on the last review as both the Big Stopper and the Pro Stop have gaskets which completely stop the light leakage from the sides and top of the filters. I also used a Lee 3 stop soft ND Grad for these shots as this is a combination I use a lot.

This first image is straight out of the camera. As you can see the 45 second exposure has produced an image in which both filters are within 1/4-1/2 a stop of each other. Both filters have a blue cast with the Pro Stop being lighter due to the slight difference in densities of the filters.

Hitech pro Stop v's Lee Big Stopper

This second image is a combination of the reference image and the Pro Stop image. The reference image is using the white balance selected by the camera ‘as shot’. The Pro stop image is using a custom white balance taken from the mid-grey clouds just above the hills to the left. As you can see the colours are pretty accurate. The yellows and greens are just about the same as the reference image, with the blues being slightly paler. As this image has had no post processing, it would be very easy to adjust this image to be the same as the reference one.

Reference image v's Pro Stop

The next couple of images were taken a couple of minutes apart. They show how close the two filters can look once a custom white balance has been taken. The white balance was taken from the grey clouds just above the peaks of the Isle of Arran in the distance.

Hitech Pro Stop with custom white balance

Lee Big Stopper with custom white balance

Both images are perfectly fine. If I hadn’t been making notes of the file numbers, I would have found it hard to tell which is which.

Conclusion

As I have mentioned earlier in the review, I spent a couple of weeks and took 60-70 test shots under different conditions. I could post a few more comparison images from my tests but the truth is nearly all shots ended up with the Hitech Pro Stop making images every bit as good as the Lee Big Stopper.

The Hitech does actually beat the Big Stopper on 3 main points…

Price

The Pro Stop is only £72. The Big Stopper can be found from £92-£100

Availability

The Pro Stop is available within a couple of days direct from the factory. Lee back orders for the Big Stopper are currently at least 8-12 weeks.

Durability

The Big Stopper is notoriously fragile. I speak from first hand experience! The Resin Pro Stop filter isn’t as easy to break and if you drop it there is a chance it would survive. Try this with a Big Stopper and it’s a gonner.

It seems at long last there is a credible alternative to the Big Stopper. The filter is available direct from Formatt.

Hitech Pro Stop 10 stop ND Filter – First Look

admin — Fri, 06 May 2011 14:54:29 +0000

A quick post regarding a parcel I received today. Those very nice people at Formatt Hitech have sent me the new version of their 10 stop filter. As you can see from the image the filter now has a gasket. The filter also has a different CR39 optical resin dye from the previous 10 stop filter which is claimed to stop the IR colour casts of the previous 10 stop filter.

The filter is available now in both 85mm and 100mm sizes. The 100mm filter retails for £60+vat, the 85mm filter retails for £40+vat. To cater for Lee users that cant get a hold of the ‘Big Stopper’, this filter will be available in a version to fit the Lee holder with a 1.5mm gasket. For Hitech holder users, this filter comes with a 3mm gasket.

As well as being available in 10 stops, Formatt plan to make this filter in 6,7,8 and 9 stop versions.

A full comparison review between this new filter and the ‘Big Stopper’ will follow in the next couple of weeks. The original Hitech 10 stop vs Lee Big Stopper review is here.

UPDATE 29/05/11

Well it took a bit longer than planned but at last the review of the new Hitech Pro Stop filter is finished.

Portencross again

admin — Wed, 22 Apr 2009 22:17:33 +0000

Another trip to Portencross this morning. My main reason for the trip was to take some more images with the 10 stop ND, especially as the cloud formations were quite interesting. This image is from the pier (obviously). I played around with exposure times and the Hitech 10 stop ND allowed me to get the exposure to 61 seconds for this shot. Unfortunately, even though the sun was behind me, I had a few issues with flare and a slight magenta colour cast. It’s a pity as the effect is really good, but it’s hit and miss whether you can get a shot that doesn’t suffer from flare and colour casts.

The low early morning sun seemed to make the sailboat glow especially with the great sky above it.

Butterbridge

admin — Sat, 04 Apr 2009 20:22:13 +0000

Todays post was taken a couple of days ago. Due to the weather being nice for a change we had a trip up north. This picture is of Butterbridge, part of an old military road in Glen Kinglas. This road was built by English Redcoats not long after the Jacobite rebellion of 1745 and was part of the route from Dumbarton to Inverary. This bridge across the Kinglas Water was completed around the same time. Every summer, cattle and goats were brought here to graze on high summer pasture or ‘airigh’. While most of the men remained below on the crofts, women and children spent their time herding the cattle and making butter and cheese. They stayed on the sheiling in small groups of stone huts. The tradition died out in the late 18th century but it is remembered in names such as Beinn Ime (gaelic for ‘butter mountain’), which towers over the Glen, and in Butterbridge itself.

This shot was an ideal opportunity to use my new HiTech 10 stop ND filter. This filter has loads of problems with casts and flare and results can be a bit hit and miss. When it does work, the images can be great with blurred water and moving clouds in the sky. This view is of the bridge itself with Beinn Ime behind.

This next shot is taken from the other side of the water. I decided to convert this one to mono to really emphasise the cloud formation and the silky water.