August 01, 2014, 12:06:17 AM

Author Topic: What's wrong with cheap ND filters?  (Read 5320 times)

omar

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What's wrong with cheap ND filters?
« on: August 15, 2013, 08:44:12 AM »
Should I go for a Hoya ND filter? These seem to cost quite expensive and you can only get one grade at a time

I've just seen a filter on eBay - does all the ranges, from ND2 to ND400 for £9.99
It's a filter!
How could I go wrong?

Thanks


Omar

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What's wrong with cheap ND filters?
« on: August 15, 2013, 08:44:12 AM »

Dylan777

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Re: What's wrong with cheap ND filters?
« Reply #1 on: August 15, 2013, 09:06:38 AM »
I wouldn't put $20 filter on my L.

My 2cents: I found BW is super in term of protecting the front element - it's SOLID. It delivers great quality.
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gferdinandsen

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Re: What's wrong with cheap ND filters?
« Reply #2 on: August 15, 2013, 09:12:04 AM »
Should I go for a Hoya ND filter? These seem to cost quite expensive and you can only get one grade at a time

I've just seen a filter on eBay - does all the ranges, from ND2 to ND400 for £9.99
It's a filter!
How could I go wrong?

Thanks


Omar


Variable ND leave a cross pattern at higher ND levels.  Trust me (I have a $300 vari ND).  You are best to get a .3, .6, and .9.

I like Lee filters, they work with both my 82mm and my 77mm lenses.
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omar

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Re: What's wrong with cheap ND filters?
« Reply #3 on: August 15, 2013, 09:22:34 AM »
how much better would a £50 nd lens be than a £5 from ebay?

thanks

i won't go for the variable nd given the advice above

Viggo

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Re: What's wrong with cheap ND filters?
« Reply #4 on: August 15, 2013, 09:29:10 AM »
I bought a cheap ND filter once, only 3 stops, but the sharpness went completely out the window and it left a very green cast to everything, it was useless even if you didn't care about IQ. I bought a Marumi ND8 instead, expensive but couldn't see any degradation in IQ.
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camerabug

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Re: What's wrong with cheap ND filters?
« Reply #5 on: August 15, 2013, 09:35:46 AM »
Color cast and soft images will find your way with inferior filters. I love Lee Filters as well until you wait an indefinitely ite time for their big stopper.
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Viggo

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Re: What's wrong with cheap ND filters?
« Reply #6 on: August 15, 2013, 09:38:28 AM »
I bought a cheap ND filter once, only 3 stops, but the sharpness went completely out the window and it left a very green cast to everything, it was useless even if you didn't care about IQ. I bought a Marumi ND8 instead, expensive but couldn't see any degradation in IQ.

Be aware that there are counterfeit filters on E-Bay, I should know, I bought some in the UK.

How did I know !!, they could not even spell the manufacturers name correctly, I got a pretty quick refund from the seller after I sent an email.

If the price seems too good .................................

I knew this was a cheapo though, it said only ND filter on it  ;D It was just to test it out, if I could AF through it.
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Re: What's wrong with cheap ND filters?
« Reply #6 on: August 15, 2013, 09:38:28 AM »

Paul W. H

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Re: What's wrong with cheap ND filters?
« Reply #7 on: August 15, 2013, 09:43:33 AM »
how much better would a £50 nd lens be than a £5 from ebay?

Be aware that there are counterfeit filters on E-Bay, I should know, I bought some in the UK.

How did I know !!, they could not even spell the manufacturers name correctly, I got a pretty quick refund from the seller after I sent an email.

If the price seems too good .................................
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omar

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Re: What's wrong with cheap ND filters?
« Reply #8 on: August 15, 2013, 09:46:22 AM »
ok. i am convinced to invest

lee filters are square??
do i need to buy a separate holder?
will this holder work with all lens sizes?

what are the options for me to buy - looking for brand names

i have:

- hoya
- lee filters
- Marumi - no good availability in UK

anything else to consider?

ALSO: what do i need? n2, n4... n400??
what should i start with?

thanks

neuroanatomist

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Re: What's wrong with cheap ND filters?
« Reply #9 on: August 15, 2013, 09:56:59 AM »
I've just seen a filter on eBay - does all the ranges, from ND2 to ND400 for £9.99
It's a filter!
How could I go wrong?

LOL.  How, indeed?
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emag

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Re: What's wrong with cheap ND filters?
« Reply #10 on: August 15, 2013, 10:16:35 AM »
I bought this $40 77mm ND1000 filter through ebay ('bondscamera', Hong Kong), brand name on the filter is Camdiox

http://www.ebay.com/itm/350576100078

Also this $21 Cokin P size graduated and ND filter set with holder and adapters through ebay ('mambate', New Jersey)

http://www.ebay.com/itm/281097436699

Both work well for me and my uses.....YMMV.  If you just want to get something decent that is actually available so you can play around with it then I would recommend both of these.  Purists may cringe but they are welcome to PM me so I can give them my mailing address for that elusive Lee Big Stopper and other top shelf items they want to send me. 

I was recently in my local BestBuy and found a 77mm CPL and 77mm ND3 that included a 72-77 adapter.  Reasonable price and they work on all of my larger lenses including the  300/4L and 400/5.6 and most happily the Tokina 11-16/2.8.

I would strongly recommend against a variable ND, there may be some that do not exhibit the cross effect at higher density levels but the vast majority do, particularly any of the lower priced ones.

bluesphoto

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Re: What's wrong with cheap ND filters?
« Reply #11 on: August 15, 2013, 10:36:22 AM »
ok. i am convinced to invest

lee filters are square??
do i need to buy a separate holder?
will this holder work with all lens sizes?

what are the options for me to buy - looking for brand names

i have:

- hoya
- lee filters
- Marumi - no good availability in UK

anything else to consider?

ALSO: what do i need? n2, n4... n400??
what should i start with?

thanks


Hi omar,

I suggest you start with reading this :http://www.redbubble.com/people/peterh111/journal/4421304-the-ultimate-guide-to-neutral-density-filters
I found it to be very useful to learn about nd filters and which to buy.

A brand I would highly recommend is B+W I have their 10 stop and 6 stop filter because I like the really long exposures(a few minutes long on a bright summers day ;) ).
That would be my go to for screw in filters.
If you also want to buy gradual nd's later, I think it is best to invest in a LEE set. But the waiting period for the 10 stop is easily a few months.

I hope this was useful to you.

omar

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Re: What's wrong with cheap ND filters?
« Reply #12 on: August 15, 2013, 10:41:30 AM »
thanks for the great replies

what's 10 stop?
does that mean it goes from 1, 2, 3... 10 grades of grey?

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Re: What's wrong with cheap ND filters?
« Reply #12 on: August 15, 2013, 10:41:30 AM »

bluesphoto

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Re: What's wrong with cheap ND filters?
« Reply #13 on: August 15, 2013, 10:55:41 AM »
thanks for the great replies

what's 10 stop?
does that mean it goes from 1, 2, 3... 10 grades of grey?

Well omar 10stop is the amount of stops of light the filter blocks. A stop less light is equal to half the amount of light captured buy the sensor. For example if you have your settings at 1/200, f/8 and iso 200. Then to half the light you can either half the shutter speed too 1/100 or half the aperture size which means changing it too f5.6 or you can half the iso sensitivity too 100.
Now if you want a really long exposure you use for example a 10 stop and you can increase your shutter time by 2^10 or 1024. So the you have a time of +-5seconds.

most of the time the manufacturers use stops which can be used as 2^x or they use 1000x wich is about the same as 2^10=1024.

BUT I really think you should read the article first it will answer almost every question.

Dylan777

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Re: What's wrong with cheap ND filters?
« Reply #14 on: August 15, 2013, 11:08:50 AM »
thanks for the great replies

what's 10 stop?
does that mean it goes from 1, 2, 3... 10 grades of grey?

With 10stop - you can only shoot it through LiveView mode(back screen).
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Re: What's wrong with cheap ND filters?
« Reply #14 on: August 15, 2013, 11:08:50 AM »