I'll make a fair and neutral statement here

Based on all the facts...

1. Silverfire bought a lens from salvator without knowing the lens is damaged (assumed he did not checked)
2. Silverfire then found the lens not sharp to his liking (very subjective here) and decided to sell it away
3. Izwan bought the lens from Silverfire and found out it is a Demo unit.
4. Izwan dispute the Demo unit with Silverfire (Case settle) with RM100.00 (Izwan to keep the lens)
5. Month letter Lens malfunction, send to warranty and found out warranty already void with previous case
6. Izwan held Silverfire accountable
7. Silverfire held salvator accountable (in other thread)
8. Salvator sms. Silverfire to settle with RM300.00
9. Being a student *has no $$$ (Silverfire) ask Izwan to settle with RM300 with condition he keep the lens.
10. Izwan counter offer with RM500 and return the lens
11. Pending Salvator response to counter offer.

From here... This case is Izwan-->Silverfire-->Salvator

From the look as it Silverfire need to settle with Izwan case as he is directly involve as Silverfire then settle with Salvator (which ever the ammount they agreed) Silverfire cannot push the case to Salvator and wash hand like this... unfortunately the world does not turn like this as well haha

what I suggest is Silverfire and work out with Izwan here either with 1 off payment (RM500/=) or let work some thing out like a installment since Silverfire do say he is still a student (assume he still is) he can reach a settlement of say RM300 first and RM100 or RM50 each subsequent month...

for Izwan yeah it sucks when the deal does not go as planned but it is a lesson... lets check the product clearly as possible next time or better yet always COD... I like COD as i can ask the previous seller all sorts of question and check it out what type of person is he... if not comfortable just back off on the deal.

for Silverfire... yeah it sucks when you are the meat in between the two bread... (Hamburger scenario) but as a seller you too held some responsibility since you are the once who sell it to izwan. ultimately you will settle with Salvator but remember when you deal with Izwan Salvator is not in the picture... it is fare when you settle the deal with Izwan you do not involve him with Salvator.

I believe both of you dont expect this to happen expecially when Silverfire has so many successfull trade in his hand... some time it is just bad luck...

lesson learn on both end...

1. to Buyer... Please check your product and ask tons of question (there is no trust when dealing money transaction)
2. to Seller... yeah some time shit happens but as a genuine seller it is always better to settle with your buyer and not fall back to who you buy from...

so my conclusion Silverfire please settle with Izwan... either 1 off or go with installment... be steady bite the bullet

I will agree on DISPUTE TAG...

So... Silverfire agree to refund to TS for RM100/month until settle... I think this is acceptable....

but Silverfire should not expect back the product until the amount is settle... but in meantime TS can look up details from NIKON to assist Silverfire to recover as much as possible (being a nice guy)... but yeah Silverfire should settle with TS and then Silverfire settle with his seller.... this should be the way to go...

but the 1st owner is still a *******... Silverfire should track him down this people use other people reputation to escape....