Thursday, July 26, 2018

Nikon's 1995 Zoom 200AF Compact Camera (what is it like in the year 2018?)

I recently shot a roll of Kodak ColourPlus 200 with the Nikon Zoom 200AF compact camera. This is my 2nd blog post about film cameras and since I am not paid to review cameras nor do I have the habit of collecting cameras, this one is also dug out from from my family's old camera collection.

This camera, in fact, my wife's and this was what she used during her teens. Yes, we are the generation that transited from film to digital and as much as I missed the nostalgic feeling of film, my wallet never looked back or at least recently after I found cheaper methods to enjoy film.

I choose to use a 'budget' ISO200 film to test this camera because I didn't want to waste a more expensive ISO 400 speed film and I wasn't sure if it is still working and wasn't sure what DX ISO coding the camera can accept. I couldn't find the manual for this, but a similar camera, the Zoom300AF could only do 100, 200, 400 and 1000. So, ISO 200, it is.

The Nikon Zoom200AF and all it needs to get up and running: CR123 battery and a nice 35mm film

First Look

Build quality wise, the Zoom200AF is a camera is not too heavy but it doesn't feel like a toy. The plastic used here reminds me of the type of plastic used for electrical plugs. Pretty heavy duty stuff, I might say.

How it looks like inside

Design wise, the Nikon Zoom200AF has lots of smooth curves. It was a departure from the older, boxy camera designs and it probably fit the bill and budget of what a family camera should be and it wouldn't be out of place in the hands of an elderly or a teenager.

I liked the way it feels in my hands. The curvy design is ergonomic and helps to place my fingers where they should be. For example, the left hand grip area is made deliberately to separate the flash from my fingers while providing a little grip for supporting the camera. The right hand grip area allows my palm to cup the camera snugly.

Fully extended lens at 70mm focal length

The Zoom200AF, as it implies, has an auto focus 2x zoom lens that starts from a wide 38mm to a short telephoto of 70mm. The focal length is typical of most zoom cameras and is a fairly versatile range. Although I would discourage anyone from using the 70mm end due to the difficulty in achieving steady shot at that focal length.

After My First Film: What I think about it

Being extra cautious to make sure that I got the right conditions and framing before I clicked the shutter button, it took me way longer time that I expected to finish up my first roll of film in this camera. It took me an entire month before it reached the last frame.

Surprisingly, the camera is able to get 37 shots out of a roll of 36 exposure film. What I understand is that film is usually sold with 2 extra frames longer than stated because some cameras need to go through a longer length of film header and only manually winded cameras shoot up to 38 frames in one '36 exposure' canister. It is a nice touch here.
 
To me, this camera is truly a point-and-shoot camera and one should treat it as such when using it. There isn't many manual settings available for you to craft your perfect shot.

Here are the modes to choose from:
Auto
Red eye (auto flash)
Red eye with 10 second self timer (auto flash) 
Flash off
Flash on

The camera is geared towards making sure that the user gets a usable picture no matter the skill level. Out of all the settings, only 1 option allows you to force the flash off. I thought that was kind of sad because it doesn't allow you to take a night shot using long exposure (ok, maybe not that long of an exposure because the camera's longest shutter speed is probably just 1/2s anyway)

The metering is as expected from a good camera manufacturer. The exposure was spot on for all 37 frames of that roll.

Note the Auto-Focus

The grid lines are quite clear inside the viewfinder, it also zooms along to reflect the actual focal length

I want to talk about the auto focus. It is quite good on this camera, and it is possible to get pin sharp pictures when the focus catches the right subject you are pointing at. It does require a substantial area for the auto focus to get it right. For example, if you are taking a picture of two people and you did your pre-focusing pointed at the middle of the two persons, you might end up focusing on the scenery behind them. Point the camera at one of the persons to get the focus right.

Flash, Slow sync only

Next up is the flash. I used to think that too much flash can ruin a photo. Not with this camera. This has a diffuser built in. Normally, you can see the horizontal flash bulb inside the flash module but it is so heavily diffused that can't see the flash bulb itself.



Now, because of this heavy diffusion, the flash is distributed evenly across a short, very short distance. I once shot a close-up from about a meter away without forcing the flash off. The camera instinctively fired the flash and I was pleasantly surprised by how well exposed and well-spread the light was. Leaving the flash on is a good thing for this camera. On the other hand, I wouldn't go beyond 2 meters when taking a group photo. Any further and the flash looks disappointing.


When this camera flashes, it seems that it still attempts to capture background light. Maybe there is some slow sync involved here but I'm not sure. For dimly lit locations, it means that your subjects' faces can still be slightly blur due to handshake despite the flash. It would be nicer if I could have normal sync speed instead of slow sync all the time.

Lens Quality


The pictures I have taken were a mix of landscape and close-up portraits. The lens quality isn't the best. There is distortion near the sides. Maybe it is one of the drawbacks of having a mid quality zoom lens. I tend to follow the rule of thirds and frame my subject skewed to one side. This annoyed be quite a bit.



Having said that, the lens work great under harsh lighting. I took this picture at the Singapore River during evening time. The reflection of the evening sun was blinding. I was squinting my eyes as I stood there to take the shot. Nevertheless, the lens handled the harsh light without any lens flares, which is great!

I attempted some shots in search of some bokeh from this lens, but I was disappointed. The blurriness from out-of-focus areas look as though its from camera shake or movement. It isn't creamy at all.

Longevity



Out of all the cameras in my household, this one was strangely built around ribbon cables. Ribbon cables are awesome for keeping the profile of a device as flat as possible, but they don't last so long when they are made to go around moving parts. After a while, the plastic ribbon will break after being bent enough times. The date/time imprint stopped working due to this reason.





Sadly, the terminal at the battery door is also connected via ribbon cable and already there is a crease at the corner where the ribbon cable bends. It won't be long before it breaks off completely and killing the camera completely.


Will I use it again?

I think I might load up another film inside this camera in time to come. It is a simple camera and the design and its features are geared towards just that. I definitely won't take this camera too seriously or expect it to rise up to special situations that require manual control. However, I will take this camera out for informal photography. In my next roll, I'll probably use the flash more often when taking indoor pictures and be mindful of its effective range. For outdoor shoots, it works great.

If you have one of these old camera, do let me know what you think about them and how you use them. I would be happy to hear from you.



Friday, July 13, 2018

What type of non-rechargable battery should you be using? Carbon Zinc, Alkaline or Lithium

Clearly, our choice of battery is largely limited by whatever size that fits into the device we are trying to power up. Most of the time, there is only one type of battery chemistry available for a specific size. For the typical CR2032 coin battery, there is no other battery type other than Lithium. But, when it comes to the more common AA & AAA sizes there are usually 3 types - Carbon Zinc, Alkaline and Lithium available.

In this entry, I will be focusing only on primary, or non-rechargeable types. I will be following up to talk about rechargeable batteries in the near future. Despite in the leaps in improvement and reduction in cost of rechargeable battery chemistries, I believe that there is still a place for non-rechargable batteries in this time for the reasons of cost, capacity and dependability.

Here, I will discuss the situations and devices that will be best suited for the these 3 common battery chemistries - Carbon Zinc, Alkaline and Lithium.

Powering up many (really low drain) devices at Low Cost - Carbon Zinc
For devices that require intermittent usage across many many months

Really cheap stuff. Its ironic that the 'heavy duty' marketing speak is used here. It might have been worthy of heavy duty tasks during its hay days but time isn't too kind on old technology. Expectations have changed.

Sure, rechargeables cost next to nothing to run after the initial cost of buying the batteries and a good charger to go along. The price of electricity to charge them up during their entire lifespan is negligible compared to buying new cells all the time. But there are times when we need a lot of batteries for several low power items such as remote controllers. My home has at least 6 controllers for my TV, sound system, and other appliances. These controllers sip very little energy and can last for several years on a pair of AAAs or AAs.

Carbon Zinc types (those that are sold as 'General Purpose', 'Heavy Duty' and 'Extra Heavy Duty') are very economical. SG$1 can get a pack of 8 AA or AAA. They have the lowest capacity compared to the other two options but they can still last a good amount of time if used in low drain devices such as clocks, remotes and small toys.

High Capacity (at low drain) - Alkaline
For devices that gobble up batteries in several days to weeks

I re-purposed these Geonaute alkaline batteries from a headlamp I bought from Decathlon. The headlamp was starting to lose its brightness and the batteries were probably half depleted when I re-purposed them. They can still last a really long time in a low drain device like this remote controller

The reason why all battery manufacturers do not state the capacity of non-rechargeable battery is because the capacity of non-rechargeable batteries greatly depend on the rate of power use. Typically, the higher the power needed, the less capacity the battery is able to deliver.

There is a short period of time when some digital cameras used AA sized batteries and rechargeable batteries were still not really there yet. People brought loads of Alkaline batteries to power up their cameras on holiday. These cameras, with their energy guzzling LCD screens, tend to last about an hour of continuous usage on a set of 4 AA batteries. It was expensive to sustain a digital camera and these were pushing the limit of Alkaline batteries.

According to Energizer's datasheet, a AA battery can provide up to 3000mAh of energy if it was used in a device that required a constant current of 25mA. Its capacity can drop to half of that if used at 1500mA. Practically speaking, many portable devices drain at a rate between 25mA to 500mA. For a general idea of how long a AA battery can last at these rates:

At 25mA the battery will last 120 hours,
At 500mA, only 3 hours.

Available Capacity vs Discharge Rate (at 500mA, half of the total capacity is converted to heat before  Source: Energizer E91 Alkaline AA Datasheet

Naturally, I try to use alkaline batteries in sensor lights, slow motorised toys and stove igniters. In general, I put them in low-medium drain items that does not require frequent re-loading of batteries.

Dependability - Lithium
When you really need it to work in a very expected and reliable manner (compared to other non-rechargeables)

Image source: Energizer


Lithium non-rechargeables are the most expensive battery type and they cost just a hair less than its equivalent NiMh sizes and in recent years, Lithium-ion of similar capacity have also gotten quite competitive in price.

A pack of 4 AAs cost a whopping SG$17.80 at NTUC Fairprice, a local supermarket in Singapore. A few dollars more and you can buy a nice pack of NiMH rechargeables.

Nevertheless, for its weight and size, it packs a lot of energy. A single Lithium AA battery holds about 3500mAh but unlike the cheaper Alkalines, its capacity is less dependent on the rate of discharge. This means that it is possible to make full use of its capacity even at high discharge rates of 1000mA (Source: Energizer L91 datasheet).

For comparison, for a device that draws a constant 1000mA,
Lithium AA: 3.5h
Alkaline AA: 1h

Lithium tends to hold up well in high discharge situations, unlike alkalines. Source: Energizer L91 Lithium Datasheet

I haven't bought AA/AAA sized Lithium battery in years. I find that almost everything I need from non-rechargeable Lithium batteries can be met by NiMH rechargeables.

My most recent Lithium battery purchase was a uniquely shaped CR223 battery that my old camera, Nikon F601 uses. Lithium batteries are still widely used by film cameras and there is no non-recharegable equivalent in other chemistries. Some of Fujifilm's instant film cameras use a very small CR2 lithium battery for power. These Lithium batteries are great at giving cameras a consistent performance particularly for flash photography and high frame rate shooting.

A common photo battery is the CR123. Shown inside my compact film camera

I'm happy that most battery manufacturers still churn out odd sized batteries that keeps my old cameras alive. Had my old cameras used some proprietary rechargeable battery, it would be extremely difficult get my hands on them.