Nikon D70 fokus

Another point in the teleconverters issue:

A friend of my that tested the Nikon converters by himself wrote that the TC-14/TC-20 won't work with the AF lens, only on the AFS lens because of mechanical unsuitability.

He recommended the Kenko Pro series converters, according to him there is almost(if any) no different in quality vs. the Nikon converters, they less massive (plastic vs. metal) but work better with no unsuitability.

when you say extension rings - do you mean what I refer to as tubes - those rings you screw on between the body and the lens?

I have a sea & sea housing with ports and I will physically have to take my camera, housing to the camera shop to go and fit the lot.

Does anyone have a Sea & Sea housing? I battle my ass off to get my compact port screwed off after a dive - it SITS like it is glued!

Hi Arnon & Tim

ok to answer your quetsions regarding the fitting of this lens.

I use a Kenko Pro 300 2x DX teleconverter, the body length on this item is approx

43mm long.

Your quite correct Arnon about some of the Nikon Units, My kenko unit is superb

I knew that i had at least 15mm of space to play with using my setup which is a DX-70 housing Compact Port base and Small Port (sea & sea)

so i just ordered the 40mm extension ring, this gave me about 55mm to play with, and the teleconverter is only 43mm so lots of scope.

As for you Arnon, you going to have to do some simple measuring of your chosen teleconverter and select the ikelite port applicable for that.

the Nikon teleconverters are a little longer which i chose not to purchase for the simple reason of, for the amount of time i actually use this setup, i would have had to purchase yet another port as the length exceeded my combination.

Tim, your more than welcome to pop over my place and try out this 2x teleconverter if your ever around Cheadle Staffordshire.

you simply will need a extension ring that will cover the length of your chosen teleconverter.

regards all

craig

Others have had success with the 70-180mm macro (discontinued)

<{POST_SNAPBACK}>

A slight correction there. 70-180mm macro is stilll a current model in most parts of the world, just not the US. I am not sure why Nikon USA does not import in the 70-180mm but if you check Nikon Global site, http://nikonimaging.com/global/products/le...micro/index.htm

it is still listed there.

Our local Nikon distributor here, Niks Thailand still carry 70-180mm and many mail order places in the US still sell grey market 70-180mm the last time I check.

Thanks Craig - much appreciated. I may well take you up on the offer. As you say, you are only down the road and I'm often passing through your way (I have a daughter at Loughbourough Uni). And its always nice to meet a Wetpixler.

Thank's Craig

Its seems that the Nikon 105's port (#5505.5) will fit, good news since I have friends with that port so I could test this combination before buying.

To cover the last question by Bluepixel

Yes i have the same issue to remove the ports from my Sea & Sea Rigs, Dont worry it shows they are sealed !!! well !!!.

an extension ring is not a extension TUBE.

the ring is simply a metal spacer that fits between the housing and you port to extend its enitre length.

regards

craig

Hello again. On the subject of extreme macro 101:

First of all I would advice a new photographer to concentrate on using the 60mm on its own for a while before proceeding to add converters and diopters. After being comfortable with the 60 move on to the 105 and then after many months of shooting with this lens alone you may be ready to add a teleconverter which will reduce your depth of field dramatically, it will also make it harder to focus AF or manually and will also be very tricky to master from a few feet away on a minute subject. Your strobe placement will also be altered, as will be the power of your settings.

I would never advise on altering the ASA to obtain good exposure.

In film this setup worked using asa 50 so with digital there is no excuse as you are already starting with more sensitivity to light (200 asa). You should have more strobe power than needed, even with the loss of light through TC and working from a few feet away.

If you decide to go ahead and get into the extreme macro world you will need a to do a few things first.

I would personally only shoot in manual mode as the accuracy of where the sharpest point on the image would be for me to choose not the AF.

You will need a custom port to accommodate the TC of your choice.

I asked Aquatica to create a custom 3†extension port for my Kenko 2x teleconverter. I use this one piece extension with the flat port for 2:1 macro with the 105.

The idea is that Teleconverters allow you to double the magnification at the closest possible focus range of the lens being used without cutting your working distance. This means you can go to 2:1 using a 60mm at close range without getting twice as close to the subject.

As soon as you add diopters, whether internal or wet everything the rules change as you will have to move in to obtain the magnification desired.

The ideal scenario then if you wanted to go all the way is to start from a longer distance and add the TC to double the magnification then add all the diopters, physically having to move in up close….the result would be a large magnification at a working distance that permits proper lighting and doesn’t infringe on the space of your subject. Besides blinding it, you don’t want it to go disappear.

This takes years to master. Period.

In film the 60mm is totally impractical as its working distance is too close.

Because of the 1.5 conversion of this film lens when working in digital it is more like a 105 than a 60. So it works much better.

The use of the 200mm (300mm in digital), with TC and diopters is not practical at all for all but the most experienced shooters and for certain subjects. You have to look at the practicalities of all this. Holding a 600 mm with a 2:1 ratio is well, hard if not damn impossible underwater. The DOF is all but non-existent.

By the way. No matter what combination of lens, TC and or diopters I would never shoot anything but f22. No exceptions. The risk of a soft image is too great.

For film and digital shooters the 105 is still the best macro lens for small critters when you need to keep a little distance. The 60 can handle most up close work. The 200 is very impractical.

Hopes this helps.

Mauricio Handler

Hi Guys

i've just completed a few test's for you with my 60mm and kenko 2x pro300 tele

please excuse me for the subject matter,

on that front this is a wonderful item my wife purchased for me, made from scrap bits of metal, its a photographer and clownfish.

ok to size it , the whole scene is approx 10" long, the little clown fish is about 2cm length inside his anemone

first image: was shot Wide open at F2.8 1/160 distance approx 3 to 4ft

for some reason the 2 stop loss is over the entire range of the lens, you can actually get it to down to F2.8 !!, why ? some might explain.

you can see DOF is quite shallow, the photographer figure is approx 4.5 inches from the clown, the lens cap just gives scale.

Second image: Same but shot a F32 1/160 distance 3 to 4ft

DOF is greatly increased

Third image is F32 1/160 shot from <1ft away

final image is in next post as image size is exceeded in this post

Ok final image

is Macro, taken 1:1 lens in manual focus F32 1/160 sec standing off about 7"

the quality seems dam fine to me you can pick out detail in the paint even.

hope this helps those thinking of a 2x tele and quality issues

regards

craig