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600mm F4 with close up lens


ARI 17 561 United Kingdom
30 Jul 2020 3:27PM
Close up lens come in varying strengths and are screwed on to the front of fixed focus or zoom lens. This is not possible with the 600f4. However one can attach a 52mm filter to the drop in filter holder and insert it to the lens. Filters wor this manner with no ill effects. Has any one tried close up lens this way. The closest focusing with the 600f4 is about 3.5meters (13 feet). Attached picture was taken with an original 100-400 mk1 at 400mm attached to an Eos 7D mk1, Subject is a male golden orb spider, in the background well out of focus, is the female whose span is about ones' hand. After she has had her wicked way with him, she eats him for sustenance to make the eggs to come. The webs were about three meters into the bush and the picture had to be taken on a bean bag from the car.6761_1596118256.jpg

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Philh04 Plus
14 2.2k United Kingdom
30 Jul 2020 4:34PM
No it will not work optically, are you just trying to reduce the min focus distance then the only way is to introduce an extension tube.
ARI 17 561 United Kingdom
31 Jul 2020 12:05AM
I suspected as much as the close up lens would be introducing another lens element into the lens train. I was mulling of a way to reduce min focusing distance without taking the lens off the body in dusty conditions.
LenShepherd 12 4.2k United Kingdom
31 Jul 2020 7:10PM
The theory is a 0.25 or 0.50 diopter will reduce the minimum focus of a portrait or telephoto lens.
As you have discovered there is no way to attach a close-up filter to the front of this lens - and even if there was with a filter size of over 100mm it would likely cost more than an extension tube - or maybe 2 tubes.
Philh04 Plus
14 2.2k United Kingdom
1 Aug 2020 12:07PM

Quote:The theory is a 0.25 or 0.50 diopter

Yes but where do you get +1/4 and +1/2 dioptre close up lenses, I know of only one manufacturer which is Lyndsey Optics in the states and they are very expensive.
ARI 17 561 United Kingdom
1 Aug 2020 12:59PM
I do not have extension tubes or close up lens. Due to the interesting relationship between the sexes, I tried to create a picture that would bring the female more into the picture. the 600mm was on the 5D. with hindsight, I ought to have swapped the 600 on to the 7D. It is only when reviewing the files that the thought of using a close up lens in the filter slot of the 600 came to mind.
I include a picture of her ladyship taken with the same setup 6761_1596282734.jpg
I also wonder if the male spiders are taught the facts of life and about their future, at bug school.
Philh04 Plus
14 2.2k United Kingdom
1 Aug 2020 1:13PM

Quote:I also wonder if the male spiders are taught the facts of life and about their future, at bug school.

Grin

I suppose the only way could have been to focus stack, but I have no idea if that would have practical in this situation.
ARI 17 561 United Kingdom
1 Aug 2020 2:04PM
Focus stacking is an idea for future but I am not sure if I could have done it here, even if I had thought of it. If memory serves me correctly, the distance between both bugs is about one meter, maybe a little less. Her web was well over two meters long and is about a meter across. You can come across similar webs strung across shrubs, gently wafting in any breeze like curtains. They can cover shrubs of over three meters tall.
See what lock down does and when one has nothing better to do!!

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