about | support
home
 


  Reviews by: jeffbuzz  

View profile View recent posts View reviews Add jeffbuzz to your Buddy List
Tokina 12-24mm f/4 AT-X 124 AF PRO DX SD

atx124afprodx
Review Date: Jan 11, 2008 Recommend? yes | Price paid: $450.00 | Rating: 6 

 
Pros: Build quality, smooth mechanical operation of manual focusing, consistent image quality across zoom and aperture ranges, constant f/4 aperture, minor vignetting at wide end with standard filters
Cons:
Images tend to be soft (i.e. not sharp and contrasty), auto focus is slow, not as wide as competing lenses (12mm versus 10mm)

I purchased the Tokina 12-24mm f/4 DX for a Nikon mount through a dealer and not second hand. I was immediately impressed with the overall build quality of this lens. It is easily on par with Nikon pro level lenses and Canon L series hardware. This also translates into substantial weight which should also be considered when mounting this lens on the DX style camera bodies on which it is designed to work. DX type cameras are all small body styled (without built on vertical grip like the Nikon D1,2 series and Canon 1 series). So unless you use an add on grip with your camera this is going to be a relatively front heavy setup for hand holding.

I prefer to manually focus most of time and this lens is a pleasure to work with manually given the large focus ring that operates with smooth precision. Auto focus hunts a bit in low light, low contrast situations on a D200. Probably more due to a maximum aperture of f/4 versus f/2.8 on the full frame equivalent focal length zooms.

Shooting interiors with this lens is a pleasure as it gives the equivalent angle of view of an 18mm lens on a full frame 35mm body. Showing expansive interior spaces is fairly easy and does not require backing all the way up into a room corner. Outdoor work is worry free as the build quality is reassuring no matter what the weather. Glare can be an issue when shooting with the sun near the frame edges but the included hood helps considerably and is a necessity for most bright days.

When it came time to process images shot with this lens I was disappointed. I found moderate softness all over the frame at all apertures. This surprised me given my typically positive experience with Tokina products. Sometimes you get a bad apple, no big deal. Since I had a new lens under warranty I simply called Tokina, popped it in a box, and sent it back for a checkup. I fully expected Tokina to make a repair and get back a better performer. Ten days later I got back the lens with a note from Tokina repair saying that this lens was tested and functioned within specification.

Now I still find Tokina products to typically be a good value and this lens is no exception. However, I feel the overall optics of this lens leave a bit to be desired especially if you plan to crop and enlarge images (or if you enjoy pixel peeping). Bottom line is that the 12-24mm will help you get shots that simply are not possible on DX format bodies without this breed of ultra-wide lens. The good news is that performance is quite consistent across all focal lengths and apertures. The bad news is that the performance is consistently mediocre. Do not expect to obtain razor sharp images, even at f/11, with this lens because it apparently is simply not designed to do that.


 
Acratech ballhead

57ballhead_1_
Review Date: Apr 4, 2006 Recommend? yes | Price paid: $250.00 | Rating: 8 

 
Pros: Size and weight Build quality High speed clamp release Rubberized knobs keep fingers warmer in winter Open design sheds dirt and water Outstanding customer service
Cons:
Delicate and susceptible to mis-adjustment Creeps slightly even under light loads

A tripod head is not as glamorous as the gear usually clamped to it, but it is often equally important in creating a memorable image. Different heads are built for different purposes. The Acratech Ultimate Ballhead is designed for travelling light and eliminating the excuse of not having a tripod when you need one.

Backpacking into difficult terrain and extended travel have a lot in common. Both situations reward the minimalist who is prepared to deal with the unexpected. The Acratech ballhead fits this niche perfectly. For backpacking, this head takes up a minimum of precious space and adds half the weight of many Arca style heads. The open design allows the ball to shed water and dirt better than traditional bottom closed designs.

This is not a studio ballhead. Macro and architectural work is difficult as the head tends to creep slightly even under light loads. This seems to be less an issue of clamping power (as the Acratech has that to spare) and more an issue of body flex. After composing a tight tabletop shot and locking down the ball, the frame always drifts slightly down with gravity.

While the Acratech defends itself well against external dangers of mother nature, it is susceptible to self induced (or rather user induced) problems. If the ball is left tighly clamped for too long, the ball will warp. I left a camera clamped in position overnight and the next day found the ball had a distinct tight spot in its rotation. My attempt to cure the problem by adjusting the tension on the clamp only made the situation worse. I returned the ballhead to Acratech for repair. Their customer service is exceptional. I don't know if the ball itself was replaced or if other adjustments were made, but after the no-charge service and fast turn-around it worked as good as new.

The Acratech Ultimate Ballhead is not for everyone or every situation. But as a travelling companion, it is hard to beat.


 
Canon TS-E 24mm f/3.5L

ts243_1_
Review Date: Aug 22, 2005 Recommend? yes | Price paid: Not Indicated | Rating: 9 

 
Pros: <> Superbly smooth manual focus fell <> Wide angle perspective correction capabilities
Cons:
<> Lens is fixed with either perpendicular or parallel movements. If the user could easily switch from one mode to the other, this would truly be the perfect lens.

This lens is one of the reasons I use Canon equipement. To achieve view camera like movements using a small format system gives you a very powerful tool in a very convenient package.

As this lens comes from the factory with perpendicular movements, you must choose whether you need the default setup or have it changed over to parallel movements. My recommendation: if you make landscape panoramics, leave it as is. If you shoot interiors or anything else generally not requiring horizontal stitching, have the lens changed over to parallel operation. Use it for a while to decide if you really need it switched over before going through the trouble.

The image circle of all the Canon TS-E lenses is much larger than that of standard 35mm lens. When the lens is not shifted or tilted, you are shooting through the cropped down "sweet spot" of the lens, even when using a full frame sensor camera like the 1Ds. This is one sure way to reduce issues surrounding chromatic aberation found at the edges of many "normal" lens with 35mm image circles.

Critical focusing is tricky. Not due to the lens, but to the small viewfinder of the 35mm format. When making movements with a 4x5 or 8x10 camera, you have a huge piece of ground glass on which to analyze focus. This task is difficult in bright light through the eyepiece of a 35mm style camera body. You must use a tripod when utilizing any movements with this lens.

The price of these lenses must be due to their small production numbers. Considering it is manual focus and a relatively slow aperture, over $1000 is quite steep. It is built like a tank and the optics are excellent.